Aaru/Aaru.Core/Devices/Dumping/SSC.cs

// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename       : SSC.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// Component      : Core algorithms.
//
// --[ Description ] ----------------------------------------------------------
//
//     Dumps media from SCSI Streaming devices.
//
// --[ License ] --------------------------------------------------------------
//
//     This program is free software: you can redistribute it and/or modify
//     it under the terms of the GNU General Public License as
//     published by the Free Software Foundation, either version 3 of the
//     License, or (at your option) any later version.
//
//     This program is distributed in the hope that it will be useful,
//     but WITHOUT ANY WARRANTY; without even the implied warranty of
//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//     GNU General Public License for more details.
//
//     You should have received a copy of the GNU General Public License
//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2022 Natalia Portillo
// ****************************************************************************/

// ReSharper disable JoinDeclarationAndInitializer

namespace Aaru.Core.Devices.Dumping;

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Xml.Serialization;
using Aaru.CommonTypes;
using Aaru.CommonTypes.Enums;
using Aaru.CommonTypes.Extents;
using Aaru.CommonTypes.Interfaces;
using Aaru.CommonTypes.Metadata;
using Aaru.CommonTypes.Structs;
using Aaru.Core.Logging;
using Aaru.Decoders.SCSI;
using Aaru.Decoders.SCSI.SSC;
using Aaru.Devices;
using Aaru.Helpers;
using Schemas;
using MediaType = Aaru.CommonTypes.MediaType;
using Version = Aaru.CommonTypes.Interop.Version;

partial class Dump
{
    /// <summary>Dumps the tape from a SCSI Streaming device</summary>
    void Ssc()
    {
        DecodedSense? decSense;
        bool          sense;
        uint          blockSize;
        ulong         blocks = 0;
        MediaType     dskType;
        DateTime      start;
        DateTime      end;
        double        totalDuration = 0;
        double        currentSpeed  = 0;
        double        maxSpeed      = double.MinValue;
        double        minSpeed      = double.MaxValue;
        var           outputTape    = _outputPlugin as IWritableTapeImage;

        _dev.RequestSense(out byte[] senseBuf, _dev.Timeout, out double duration);
        decSense = Sense.Decode(senseBuf);

        InitProgress?.Invoke();

        if(decSense.HasValue &&
           decSense.Value.SenseKey != SenseKeys.NoSense)
        {
            _dumpLog.WriteLine("Device not ready. Sense {0}h ASC {1:X2}h ASCQ {2:X2}h", decSense.Value.SenseKey,
                               decSense.Value.ASC, decSense.Value.ASCQ);

            StoppingErrorMessage?.Invoke("Drive has status error, please correct. Sense follows..." +
                                         Environment.NewLine + decSense.Value.Description);

            return;
        }

        // Not in BOM/P
        if(decSense is { ASC: 0x00 }       &&
           decSense.Value.ASCQ     != 0x00 &&
           decSense.Value.ASCQ     != 0x04 &&
           decSense.Value.SenseKey != SenseKeys.IllegalRequest)
        {
            _dumpLog.WriteLine("Rewinding, please wait...");
            PulseProgress?.Invoke("Rewinding, please wait...");

            // Rewind, let timeout apply
            _dev.Rewind(out senseBuf, _dev.Timeout, out duration);

            // Still rewinding?
            // TODO: Pause?
            do
            {
                PulseProgress?.Invoke("Rewinding, please wait...");
                _dev.RequestSense(out senseBuf, _dev.Timeout, out duration);
                decSense = Sense.Decode(senseBuf);
            } while(decSense is { ASC: 0x00, ASCQ: 0x1A or not (0x04 and 0x00) });

            _dev.RequestSense(out senseBuf, _dev.Timeout, out duration);
            decSense = Sense.Decode(senseBuf);

            // And yet, did not rewind!
            if(decSense.HasValue &&
               (decSense.Value.ASC == 0x00 && decSense.Value.ASCQ != 0x04 && decSense.Value.ASCQ != 0x00 ||
                decSense.Value.ASC != 0x00))
            {
                StoppingErrorMessage?.Invoke("Drive could not rewind, please correct. Sense follows..." +
                                             Environment.NewLine + decSense.Value.Description);

                _dumpLog.WriteLine("Drive could not rewind, please correct. Sense follows...");

                _dumpLog.WriteLine("Device not ready. Sense {0}h ASC {1:X2}h ASCQ {2:X2}h", decSense.Value.SenseKey,
                                   decSense.Value.ASC, decSense.Value.ASCQ);

                return;
            }
        }

        // Check position
        sense = _dev.ReadPosition(out byte[] cmdBuf, out senseBuf, SscPositionForms.Short, _dev.Timeout, out duration);

        if(sense)
        {
            // READ POSITION is mandatory starting SCSI-2, so do not cry if the drive does not recognize the command (SCSI-1 or earlier)
            // Anyway, <=SCSI-1 tapes do not support partitions
            decSense = Sense.Decode(senseBuf);

            if(decSense.HasValue &&
               (decSense.Value.ASC == 0x20 && decSense.Value.ASCQ != 0x00 || decSense.Value.ASC != 0x20 &&
                decSense.Value.SenseKey != SenseKeys.IllegalRequest))
            {
                StoppingErrorMessage?.Invoke("Could not get position. Sense follows..." + Environment.NewLine +
                                             decSense.Value.Description);

                _dumpLog.WriteLine("Could not get position. Sense follows...");

                _dumpLog.WriteLine("Device not ready. Sense {0}h ASC {1:X2}h ASCQ {2:X2}h", decSense.Value.SenseKey,
                                   decSense.Value.ASC, decSense.Value.ASCQ);

                return;
            }
        }
        else
        {
            // Not in partition 0
            if(cmdBuf[1] != 0)
            {
                UpdateStatus?.Invoke("Drive not in partition 0. Rewinding, please wait...");
                _dumpLog.WriteLine("Drive not in partition 0. Rewinding, please wait...");

                // Rewind, let timeout apply
                sense = _dev.Locate(out senseBuf, false, 0, 0, _dev.Timeout, out duration);

                if(sense)
                {
                    StoppingErrorMessage?.Invoke("Drive could not rewind, please correct. Sense follows..." +
                                                 Environment.NewLine + decSense?.Description);

                    _dumpLog.WriteLine("Drive could not rewind, please correct. Sense follows...");

                    _dumpLog.WriteLine("Device not ready. Sense {0}h ASC {1:X2}h ASCQ {2:X2}h", decSense?.SenseKey,
                                       decSense?.ASC, decSense?.ASCQ);

                    return;
                }

                // Still rewinding?
                // TODO: Pause?
                do
                {
                    Thread.Sleep(1000);
                    PulseProgress?.Invoke("Rewinding, please wait...");
                    _dev.RequestSense(out senseBuf, _dev.Timeout, out duration);
                    decSense = Sense.Decode(senseBuf);
                } while(decSense is { ASC: 0x00 } &&
                        decSense.Value.ASCQ is 0x1A or 0x19);

                // And yet, did not rewind!
                if(decSense.HasValue &&
                   (decSense.Value.ASC == 0x00 && decSense.Value.ASCQ != 0x04 && decSense.Value.ASCQ != 0x00 ||
                    decSense.Value.ASC != 0x00))
                {
                    StoppingErrorMessage?.Invoke("Drive could not rewind, please correct. Sense follows..." +
                                                 Environment.NewLine + decSense.Value.Description);

                    _dumpLog.WriteLine("Drive could not rewind, please correct. Sense follows...");

                    _dumpLog.WriteLine("Device not ready. Sense {0}h ASC {1:X2}h ASCQ {2:X2}h", decSense.Value.SenseKey,
                                       decSense.Value.ASC, decSense.Value.ASCQ);

                    return;
                }

                sense = _dev.ReadPosition(out cmdBuf, out senseBuf, SscPositionForms.Short, _dev.Timeout, out duration);

                if(sense)
                {
                    decSense = Sense.Decode(senseBuf);

                    StoppingErrorMessage?.Invoke("Drive could not rewind, please correct. Sense follows..." +
                                                 Environment.NewLine + decSense?.Description);

                    _dumpLog.WriteLine("Drive could not rewind, please correct. Sense follows...");

                    _dumpLog.WriteLine("Device not ready. Sense {0}h ASC {1:X2}h ASCQ {2:X2}h", decSense?.SenseKey,
                                       decSense?.ASC, decSense?.ASCQ);

                    return;
                }

                // Still not in partition 0!!!?
                if(cmdBuf[1] != 0)
                {
                    StoppingErrorMessage?.Invoke("Drive could not rewind to partition 0 but no error occurred...");
                    _dumpLog.WriteLine("Drive could not rewind to partition 0 but no error occurred...");

                    return;
                }
            }
        }

        EndProgress?.Invoke();

        byte   scsiMediumTypeTape  = 0;
        byte   scsiDensityCodeTape = 0;
        byte[] mode6Data           = null;
        byte[] mode10Data          = null;

        UpdateStatus?.Invoke("Requesting MODE SENSE (10).");

        sense = _dev.ModeSense10(out cmdBuf, out senseBuf, false, true, ScsiModeSensePageControl.Current, 0x3F, 0xFF, 5,
                                 out duration);

        if(!sense ||
           _dev.Error)
            sense = _dev.ModeSense10(out cmdBuf, out senseBuf, false, true, ScsiModeSensePageControl.Current, 0x3F,
                                     0x00, 5, out duration);

        Modes.DecodedMode? decMode = null;

        if(!sense &&
           !_dev.Error)
            if(Modes.DecodeMode10(cmdBuf, _dev.ScsiType).HasValue)
                decMode = Modes.DecodeMode10(cmdBuf, _dev.ScsiType);

        UpdateStatus?.Invoke("Requesting MODE SENSE (6).");

        sense = _dev.ModeSense6(out cmdBuf, out senseBuf, false, ScsiModeSensePageControl.Current, 0x3F, 0x00, 5,
                                out duration);

        if(sense || _dev.Error)
            sense = _dev.ModeSense6(out cmdBuf, out senseBuf, false, ScsiModeSensePageControl.Current, 0x3F, 0x00, 5,
                                    out duration);

        if(sense || _dev.Error)
            sense = _dev.ModeSense(out cmdBuf, out senseBuf, 5, out duration);

        if(!sense &&
           !_dev.Error)
            if(Modes.DecodeMode6(cmdBuf, _dev.ScsiType).HasValue)
                decMode = Modes.DecodeMode6(cmdBuf, _dev.ScsiType);

        // TODO: Check partitions page
        if(decMode.HasValue)
        {
            scsiMediumTypeTape = (byte)decMode.Value.Header.MediumType;

            if(decMode.Value.Header.BlockDescriptors?.Length > 0)
                scsiDensityCodeTape = (byte)decMode.Value.Header.BlockDescriptors[0].Density;

            blockSize = decMode.Value.Header.BlockDescriptors?[0].BlockLength ?? 0;

            UpdateStatus?.Invoke($"Device reports {blocks} blocks.");
        }
        else
            blockSize = 1;

        if(!_dev.ReadBlockLimits(out cmdBuf, out senseBuf, _dev.Timeout, out _))
        {
            BlockLimits.BlockLimitsData? blockLimits = BlockLimits.Decode(cmdBuf);

            if(blockLimits?.minBlockLen > blockSize)
                blockSize = blockLimits?.minBlockLen ?? 0;
        }

        if(blockSize == 0)
            blockSize = 1;

        dskType = MediaTypeFromDevice.GetFromScsi((byte)_dev.ScsiType, _dev.Manufacturer, _dev.Model,
                                                  scsiMediumTypeTape, scsiDensityCodeTape, blocks, blockSize,
                                                  _dev.IsUsb, false);

        if(dskType == MediaType.Unknown)
            dskType = MediaType.UnknownTape;

        UpdateStatus?.Invoke($"SCSI device type: {_dev.ScsiType}.");
        UpdateStatus?.Invoke($"SCSI medium type: {scsiMediumTypeTape}.");
        UpdateStatus?.Invoke($"SCSI density type: {scsiDensityCodeTape}.");
        UpdateStatus?.Invoke($"Media identified as {dskType}.");

        _dumpLog.WriteLine("SCSI device type: {0}.", _dev.ScsiType);
        _dumpLog.WriteLine("SCSI medium type: {0}.", scsiMediumTypeTape);
        _dumpLog.WriteLine("SCSI density type: {0}.", scsiDensityCodeTape);
        _dumpLog.WriteLine("Media identified as {0}.", dskType);

        var   endOfMedia       = false;
        ulong currentBlock     = 0;
        uint  currentFile      = 0;
        byte  currentPartition = 0;
        byte  totalPartitions  = 1; // TODO: Handle partitions.
        var   fixedLen         = false;
        uint  transferLen      = blockSize;

    firstRead:

        sense = _dev.Read6(out cmdBuf, out senseBuf, false, fixedLen, transferLen, blockSize, _dev.Timeout,
                           out duration);

        if(sense)
        {
            decSense = Sense.Decode(senseBuf);

            if(decSense.HasValue)
                if(decSense.Value.SenseKey == SenseKeys.IllegalRequest)
                {
                    sense = _dev.Space(out senseBuf, SscSpaceCodes.LogicalBlock, -1, _dev.Timeout, out duration);

                    if(sense)
                    {
                        decSense = Sense.Decode(senseBuf);

                        bool eom = decSense?.Fixed?.EOM == true;

                        if(decSense?.Descriptor != null &&
                           decSense.Value.Descriptor.Value.Descriptors.TryGetValue(4, out byte[] sscDescriptor))
                            Sense.DecodeDescriptor04(sscDescriptor, out _, out eom, out _);

                        if(!eom)
                        {
                            StoppingErrorMessage?.Invoke("Drive could not return back. Sense follows..." +
                                                         Environment.NewLine + decSense.Value.Description);

                            _dumpLog.WriteLine("Drive could not return back. Sense follows...");

                            _dumpLog.WriteLine("Device not ready. Sense {0} ASC {1:X2}h ASCQ {2:X2}h",
                                               decSense.Value.SenseKey, decSense.Value.ASC, decSense.Value.ASCQ);

                            return;
                        }
                    }

                    fixedLen    = true;
                    transferLen = 1;

                    sense = _dev.Read6(out cmdBuf, out senseBuf, false, fixedLen, transferLen, blockSize, _dev.Timeout,
                                       out duration);

                    if(sense)
                    {
                        decSense = Sense.Decode(senseBuf);

                        StoppingErrorMessage?.Invoke("Drive could not read. Sense follows..." + Environment.NewLine +
                                                     decSense.Value.Description);

                        _dumpLog.WriteLine("Drive could not read. Sense follows...");

                        _dumpLog.WriteLine("Device not ready. Sense {0} ASC {1:X2}h ASCQ {2:X2}h",
                                           decSense.Value.SenseKey, decSense.Value.ASC, decSense.Value.ASCQ);

                        return;
                    }
                }
                else if(decSense.Value.ASC  == 0x00 &&
                        decSense.Value.ASCQ == 0x00)
                {
                    bool ili         = decSense.Value.Fixed?.ILI              == true;
                    bool valid       = decSense.Value.Fixed?.InformationValid == true;
                    uint information = decSense.Value.Fixed?.Information ?? 0;

                    if(decSense.Value.Descriptor.HasValue)
                    {
                        valid = decSense.Value.Descriptor.Value.Descriptors.TryGetValue(0, out byte[] desc00);

                        if(valid)
                            information = (uint)Sense.DecodeDescriptor00(desc00);

                        if(decSense.Value.Descriptor.Value.Descriptors.TryGetValue(4, out byte[] desc04))
                            Sense.DecodeDescriptor04(desc04, out _, out _, out ili);
                    }

                    if(ili && valid)
                    {
                        blockSize = (uint)((int)blockSize -
                                           BitConverter.ToInt32(BitConverter.GetBytes(information), 0));

                        transferLen = blockSize;

                        UpdateStatus?.Invoke($"Blocksize changed to {blockSize} bytes at block {currentBlock}");
                        _dumpLog.WriteLine("Blocksize changed to {0} bytes at block {1}", blockSize, currentBlock);

                        sense = _dev.Space(out senseBuf, SscSpaceCodes.LogicalBlock, -1, _dev.Timeout, out duration);

                        totalDuration += duration;

                        if(sense)
                        {
                            decSense = Sense.Decode(senseBuf);

                            StoppingErrorMessage?.Invoke("Drive could not go back one block. Sense follows..." +
                                                         Environment.NewLine + decSense.Value.Description);

                            _dumpLog.WriteLine("Drive could not go back one block. Sense follows...");

                            _dumpLog.WriteLine("Device not ready. Sense {0}h ASC {1:X2}h ASCQ {2:X2}h",
                                               decSense.Value.SenseKey, decSense.Value.ASC, decSense.Value.ASCQ);

                            return;
                        }

                        goto firstRead;
                    }

                    StoppingErrorMessage?.Invoke("Drive could not read. Sense follows..." + Environment.NewLine +
                                                 decSense.Value.Description);

                    _dumpLog.WriteLine("Drive could not read. Sense follows...");

                    _dumpLog.WriteLine("Device not ready. Sense {0} ASC {1:X2}h ASCQ {2:X2}h", decSense.Value.SenseKey,
                                       decSense.Value.ASC, decSense.Value.ASCQ);

                    return;
                }
                else
                {
                    StoppingErrorMessage?.Invoke("Drive could not read. Sense follows..." + Environment.NewLine +
                                                 decSense.Value.Description);

                    _dumpLog.WriteLine("Drive could not read. Sense follows...");

                    _dumpLog.WriteLine("Device not ready. Sense {0} ASC {1:X2}h ASCQ {2:X2}h", decSense.Value.SenseKey,
                                       decSense.Value.ASC, decSense.Value.ASCQ);

                    return;
                }
            else
            {
                StoppingErrorMessage?.Invoke("Cannot read device, don't know why, exiting...");
                _dumpLog.WriteLine("Cannot read device, don't know why, exiting...");

                return;
            }
        }

        sense = _dev.Space(out senseBuf, SscSpaceCodes.LogicalBlock, -1, _dev.Timeout, out duration);

        if(sense)
        {
            decSense = Sense.Decode(senseBuf);

            bool eom = decSense?.Fixed?.EOM == true;

            if(decSense.Value.Descriptor.HasValue &&
               decSense.Value.Descriptor.Value.Descriptors.TryGetValue(4, out byte[] desc04))
                Sense.DecodeDescriptor04(desc04, out _, out eom, out _);

            if(!eom)
            {
                StoppingErrorMessage?.Invoke("Drive could not return back. Sense follows..." + Environment.NewLine +
                                             decSense.Value.Description);

                _dumpLog.WriteLine("Drive could not return back. Sense follows...");

                _dumpLog.WriteLine("Device not ready. Sense {0} ASC {1:X2}h ASCQ {2:X2}h", decSense.Value.SenseKey,
                                   decSense.Value.ASC, decSense.Value.ASCQ);

                return;
            }
        }

        DumpHardwareType currentTry = null;
        ExtentsULong     extents    = null;

        ResumeSupport.Process(true, _dev.IsRemovable, blocks, _dev.Manufacturer, _dev.Model, _dev.Serial,
                              _dev.PlatformId, ref _resume, ref currentTry, ref extents, _dev.FirmwareRevision,
                              _private, _force, true);

        if(currentTry == null ||
           extents    == null)
        {
            StoppingErrorMessage?.Invoke("Could not process resume file, not continuing...");

            return;
        }

        var canLocateLong = false;
        var canLocate     = false;

        UpdateStatus?.Invoke("Positioning tape to block 1.");
        _dumpLog.WriteLine("Positioning tape to block 1");

        sense = _dev.Locate16(out senseBuf, 1, _dev.Timeout, out _);

        if(!sense)
        {
            sense = _dev.ReadPositionLong(out cmdBuf, out senseBuf, _dev.Timeout, out _);

            if(!sense)
            {
                ulong position = Swapping.Swap(BitConverter.ToUInt64(cmdBuf, 8));

                if(position == 1)
                {
                    canLocateLong = true;
                    UpdateStatus?.Invoke("LOCATE LONG works.");
                    _dumpLog.WriteLine("LOCATE LONG works.");
                }
            }
        }

        sense = _dev.Locate(out senseBuf, 1, _dev.Timeout, out _);

        if(!sense)
        {
            sense = _dev.ReadPosition(out cmdBuf, out senseBuf, _dev.Timeout, out _);

            if(!sense)
            {
                ulong position = Swapping.Swap(BitConverter.ToUInt32(cmdBuf, 4));

                if(position == 1)
                {
                    canLocate = true;
                    UpdateStatus?.Invoke("LOCATE works.");
                    _dumpLog.WriteLine("LOCATE works.");
                }
            }
        }

        if(_resume.NextBlock > 0)
        {
            UpdateStatus?.Invoke($"Positioning tape to block {_resume.NextBlock}.");
            _dumpLog.WriteLine("Positioning tape to block {0}.", _resume.NextBlock);

            if(canLocateLong)
            {
                sense = _dev.Locate16(out senseBuf, _resume.NextBlock, _dev.Timeout, out _);

                if(!sense)
                {
                    sense = _dev.ReadPositionLong(out cmdBuf, out senseBuf, _dev.Timeout, out _);

                    if(sense)
                    {
                        if(!_force)
                        {
                            _dumpLog.
                                WriteLine("Could not check current position, unable to resume. If you want to continue use force.");

                            StoppingErrorMessage?.
                                Invoke("Could not check current position, unable to resume. If you want to continue use force.");

                            return;
                        }

                        _dumpLog.
                            WriteLine("Could not check current position, unable to resume. Dumping from the start.");

                        ErrorMessage?.
                            Invoke("Could not check current position, unable to resume. Dumping from the start.");

                        canLocateLong = false;
                    }
                    else
                    {
                        ulong position = Swapping.Swap(BitConverter.ToUInt64(cmdBuf, 8));

                        if(position != _resume.NextBlock)
                        {
                            if(!_force)
                            {
                                _dumpLog.
                                    WriteLine("Current position is not as expected, unable to resume. If you want to continue use force.");

                                StoppingErrorMessage?.
                                    Invoke("Current position is not as expected, unable to resume. If you want to continue use force.");

                                return;
                            }

                            _dumpLog.
                                WriteLine("Current position is not as expected, unable to resume. Dumping from the start.");

                            ErrorMessage?.
                                Invoke("Current position is not as expected, unable to resume. Dumping from the start.");

                            canLocateLong = false;
                        }
                    }
                }
                else
                {
                    if(!_force)
                    {
                        _dumpLog.
                            WriteLine("Cannot reposition tape, unable to resume. If you want to continue use force.");

                        StoppingErrorMessage?.
                            Invoke("Cannot reposition tape, unable to resume. If you want to continue use force.");

                        return;
                    }

                    _dumpLog.WriteLine("Cannot reposition tape, unable to resume. Dumping from the start.");
                    ErrorMessage?.Invoke("Cannot reposition tape, unable to resume. Dumping from the start.");
                    canLocateLong = false;
                }
            }
            else if(canLocate)
            {
                sense = _dev.Locate(out senseBuf, (uint)_resume.NextBlock, _dev.Timeout, out _);

                if(!sense)
                {
                    sense = _dev.ReadPosition(out cmdBuf, out senseBuf, _dev.Timeout, out _);

                    if(sense)
                    {
                        if(!_force)
                        {
                            _dumpLog.
                                WriteLine("Could not check current position, unable to resume. If you want to continue use force.");

                            StoppingErrorMessage?.
                                Invoke("Could not check current position, unable to resume. If you want to continue use force.");

                            return;
                        }

                        _dumpLog.
                            WriteLine("Could not check current position, unable to resume. Dumping from the start.");

                        ErrorMessage?.
                            Invoke("Could not check current position, unable to resume. Dumping from the start.");

                        canLocate = false;
                    }
                    else
                    {
                        ulong position = Swapping.Swap(BitConverter.ToUInt32(cmdBuf, 4));

                        if(position != _resume.NextBlock)
                        {
                            if(!_force)
                            {
                                _dumpLog.
                                    WriteLine("Current position is not as expected, unable to resume. If you want to continue use force.");

                                StoppingErrorMessage?.
                                    Invoke("Current position is not as expected, unable to resume. If you want to continue use force.");

                                return;
                            }

                            _dumpLog.
                                WriteLine("Current position is not as expected, unable to resume. Dumping from the start.");

                            ErrorMessage?.
                                Invoke("Current position is not as expected, unable to resume. Dumping from the start.");

                            canLocate = false;
                        }
                    }
                }
                else
                {
                    if(!_force)
                    {
                        _dumpLog.
                            WriteLine("Cannot reposition tape, unable to resume. If you want to continue use force.");

                        StoppingErrorMessage?.
                            Invoke("Cannot reposition tape, unable to resume. If you want to continue use force.");

                        return;
                    }

                    _dumpLog.WriteLine("Cannot reposition tape, unable to resume. Dumping from the start.");
                    ErrorMessage?.Invoke("Cannot reposition tape, unable to resume. Dumping from the start.");
                    canLocate = false;
                }
            }
            else
            {
                if(!_force)
                {
                    _dumpLog.WriteLine("Cannot reposition tape, unable to resume. If you want to continue use force.");

                    StoppingErrorMessage?.
                        Invoke("Cannot reposition tape, unable to resume. If you want to continue use force.");

                    return;
                }

                _dumpLog.WriteLine("Cannot reposition tape, unable to resume. Dumping from the start.");
                ErrorMessage?.Invoke("Cannot reposition tape, unable to resume. Dumping from the start.");
                canLocate = false;
            }
        }
        else
        {
            _ = canLocateLong ? _dev.Locate16(out senseBuf, false, 0, 0, _dev.Timeout, out duration)
                    : _dev.Locate(out senseBuf, false, 0, 0, _dev.Timeout, out duration);

            do
            {
                Thread.Sleep(1000);
                PulseProgress?.Invoke("Rewinding, please wait...");
                _dev.RequestSense(out senseBuf, _dev.Timeout, out duration);
                decSense = Sense.Decode(senseBuf);
            } while(decSense is { ASC: 0x00 } &&
                    decSense.Value.ASCQ is 0x1A or 0x19);

            // And yet, did not rewind!
            if(decSense.HasValue &&
               (decSense.Value.ASC == 0x00 && decSense.Value.ASCQ != 0x00 && decSense.Value.ASCQ != 0x04 ||
                decSense.Value.ASC != 0x00))
            {
                StoppingErrorMessage?.Invoke("Drive could not rewind, please correct. Sense follows..." +
                                             Environment.NewLine + decSense.Value.Description);

                _dumpLog.WriteLine("Drive could not rewind, please correct. Sense follows...");

                _dumpLog.WriteLine("Device not ready. Sense {0}h ASC {1:X2}h ASCQ {2:X2}h", decSense.Value.SenseKey,
                                   decSense.Value.ASC, decSense.Value.ASCQ);

                return;
            }
        }

        bool ret = outputTape.SetTape();

        // Cannot set image to tape mode
        if(!ret)
        {
            _dumpLog.WriteLine("Error setting output image in tape mode, not continuing.");
            _dumpLog.WriteLine(outputTape.ErrorMessage);

            StoppingErrorMessage?.Invoke("Error setting output image in tape mode, not continuing." +
                                         Environment.NewLine + outputTape.ErrorMessage);

            return;
        }

        ret = outputTape.Create(_outputPath, dskType, _formatOptions, 0, 0);

        // Cannot create image
        if(!ret)
        {
            _dumpLog.WriteLine("Error creating output image, not continuing.");
            _dumpLog.WriteLine(outputTape.ErrorMessage);

            StoppingErrorMessage?.Invoke("Error creating output image, not continuing." + Environment.NewLine +
                                         outputTape.ErrorMessage);

            return;
        }

        start = DateTime.UtcNow;
        var mhddLog = new MhddLog(_outputPrefix + ".mhddlog.bin", _dev, blocks, blockSize, 1, _private);
        var ibgLog  = new IbgLog(_outputPrefix  + ".ibg", 0x0008);

        var currentTapeFile = new TapeFile
        {
            File       = currentFile,
            FirstBlock = currentBlock,
            Partition  = currentPartition
        };

        var currentTapePartition = new TapePartition
        {
            Number     = currentPartition,
            FirstBlock = currentBlock
        };

        if((canLocate || canLocateLong) &&
           _resume.NextBlock > 0)
        {
            currentBlock = _resume.NextBlock;

            currentTapeFile =
                outputTape.Files.FirstOrDefault(f => f.LastBlock == outputTape?.Files.Max(g => g.LastBlock));

            currentTapePartition =
                outputTape.TapePartitions.FirstOrDefault(p => p.LastBlock ==
                                                              outputTape?.TapePartitions.Max(g => g.LastBlock));
        }

        if(mode6Data != null)
            outputTape.WriteMediaTag(mode6Data, MediaTagType.SCSI_MODESENSE_6);

        if(mode10Data != null)
            outputTape.WriteMediaTag(mode10Data, MediaTagType.SCSI_MODESENSE_10);

        DateTime timeSpeedStart     = DateTime.UtcNow;
        ulong    currentSpeedSize   = 0;
        double   imageWriteDuration = 0;

        InitProgress?.Invoke();

        while(currentPartition < totalPartitions)
        {
            if(_aborted)
            {
                currentTry.Extents = ExtentsConverter.ToMetadata(extents);
                UpdateStatus?.Invoke("Aborted!");
                _dumpLog.WriteLine("Aborted!");

                break;
            }

            if(endOfMedia)
            {
                UpdateStatus?.Invoke($"Finished partition {currentPartition}");
                _dumpLog.WriteLine("Finished partition {0}", currentPartition);

                currentTapeFile.LastBlock = currentBlock - 1;

                if(currentTapeFile.LastBlock > currentTapeFile.FirstBlock)
                    outputTape.AddFile(currentTapeFile);

                currentTapePartition.LastBlock = currentBlock - 1;
                outputTape.AddPartition(currentTapePartition);

                currentPartition++;

                if(currentPartition < totalPartitions)
                {
                    currentFile++;

                    currentTapeFile = new TapeFile
                    {
                        File       = currentFile,
                        FirstBlock = currentBlock,
                        Partition  = currentPartition
                    };

                    currentTapePartition = new TapePartition
                    {
                        Number     = currentPartition,
                        FirstBlock = currentBlock
                    };

                    UpdateStatus?.Invoke($"Seeking to partition {currentPartition}");
                    _dev.Locate(out senseBuf, false, currentPartition, 0, _dev.Timeout, out duration);
                    totalDuration += duration;
                }

                continue;
            }

            if(currentSpeed > maxSpeed &&
               currentSpeed > 0)
                maxSpeed = currentSpeed;

            if(currentSpeed < minSpeed &&
               currentSpeed > 0)
                minSpeed = currentSpeed;

            PulseProgress?.Invoke($"Reading block {currentBlock} ({currentSpeed:F3} MiB/sec.)");

            sense = _dev.Read6(out cmdBuf, out senseBuf, false, fixedLen, transferLen, blockSize, _dev.Timeout,
                               out duration);

            totalDuration += duration;

            if(sense                 &&
               senseBuf?.Length != 0 &&
               !ArrayHelpers.ArrayIsNullOrEmpty(senseBuf))
            {
                decSense = Sense.Decode(senseBuf);

                bool ili         = decSense?.Fixed?.ILI              == true;
                bool valid       = decSense?.Fixed?.InformationValid == true;
                uint information = decSense?.Fixed?.Information ?? 0;
                bool eom         = decSense?.Fixed?.EOM      == true;
                bool filemark    = decSense?.Fixed?.Filemark == true;

                if(decSense?.Descriptor.HasValue == true)
                {
                    if(decSense.Value.Descriptor.Value.Descriptors.TryGetValue(0, out byte[] desc00))
                    {
                        valid       = true;
                        information = (uint)Sense.DecodeDescriptor00(desc00);
                    }

                    if(decSense.Value.Descriptor.Value.Descriptors.TryGetValue(4, out byte[] desc04))
                        Sense.DecodeDescriptor04(desc04, out filemark, out eom, out ili);
                }

                if(decSense.Value.ASC  == 0x00 &&
                   decSense.Value.ASCQ == 0x00 &&
                   ili                         &&
                   valid)
                {
                    blockSize = (uint)((int)blockSize - BitConverter.ToInt32(BitConverter.GetBytes(information), 0));

                    if(!fixedLen)
                        transferLen = blockSize;

                    UpdateStatus?.Invoke($"Blocksize changed to {blockSize} bytes at block {currentBlock}");
                    _dumpLog.WriteLine("Blocksize changed to {0} bytes at block {1}", blockSize, currentBlock);

                    sense = _dev.Space(out senseBuf, SscSpaceCodes.LogicalBlock, -1, _dev.Timeout, out duration);

                    totalDuration += duration;

                    if(sense)
                    {
                        decSense = Sense.Decode(senseBuf);

                        StoppingErrorMessage?.Invoke("Drive could not go back one block. Sense follows..." +
                                                     Environment.NewLine + decSense.Value.Description);

                        outputTape.Close();
                        _dumpLog.WriteLine("Drive could not go back one block. Sense follows...");

                        _dumpLog.WriteLine("Device not ready. Sense {0}h ASC {1:X2}h ASCQ {2:X2}h",
                                           decSense.Value.SenseKey, decSense.Value.ASC, decSense.Value.ASCQ);

                        return;
                    }

                    continue;
                }

                switch(decSense.Value.SenseKey)
                {
                    case SenseKeys.BlankCheck when currentBlock == 0:
                        StoppingErrorMessage?.Invoke("Cannot dump a blank tape...");
                        outputTape.Close();
                        _dumpLog.WriteLine("Cannot dump a blank tape...");

                        return;

                    // For sure this is an end-of-tape/partition
                    case SenseKeys.BlankCheck when decSense.Value.ASC == 0x00 &&
                                                   (decSense.Value.ASCQ is 0x02 or 0x05 || eom):
                        // TODO: Detect end of partition
                        endOfMedia = true;
                        UpdateStatus?.Invoke("Found end-of-tape/partition...");
                        _dumpLog.WriteLine("Found end-of-tape/partition...");

                        continue;
                    case SenseKeys.BlankCheck:
                        StoppingErrorMessage?.Invoke("Blank block found, end of tape?...");
                        endOfMedia = true;
                        _dumpLog.WriteLine("Blank block found, end of tape?...");

                        continue;
                }

                switch(decSense.Value.SenseKey)
                {
                    case SenseKeys.NoSense or SenseKeys.RecoveredError when decSense.Value.ASCQ is 0x02 or 0x05 || eom:
                        // TODO: Detect end of partition
                        endOfMedia = true;
                        UpdateStatus?.Invoke("Found end-of-tape/partition...");
                        _dumpLog.WriteLine("Found end-of-tape/partition...");

                        continue;
                    case SenseKeys.NoSense or SenseKeys.RecoveredError when decSense.Value.ASCQ == 0x01 || filemark:
                        currentTapeFile.LastBlock = currentBlock - 1;
                        outputTape.AddFile(currentTapeFile);

                        currentFile++;

                        currentTapeFile = new TapeFile
                        {
                            File       = currentFile,
                            FirstBlock = currentBlock,
                            Partition  = currentPartition
                        };

                        UpdateStatus?.Invoke($"Changed to file {currentFile} at block {currentBlock}");
                        _dumpLog.WriteLine("Changed to file {0} at block {1}", currentFile, currentBlock);

                        continue;
                }

                if(decSense is null)
                {
                    StoppingErrorMessage?.Invoke($"Drive could not read block ${currentBlock
                    }. Sense cannot be decoded, look at log for dump...");

                    _dumpLog.WriteLine($"Drive could not read block ${currentBlock}. Sense bytes follow...");
                    _dumpLog.WriteLine(PrintHex.ByteArrayToHexArrayString(senseBuf, 32));
                }
                else
                {
                    StoppingErrorMessage?.Invoke($"Drive could not read block ${currentBlock}. Sense follows...\n{
                        decSense.Value.SenseKey} {decSense.Value.Description}");

                    _dumpLog.WriteLine($"Drive could not read block ${currentBlock}. Sense follows...");

                    _dumpLog.WriteLine("Device not ready. Sense {0}h ASC {1:X2}h ASCQ {2:X2}h", decSense.Value.SenseKey,
                                       decSense.Value.ASC, decSense.Value.ASCQ);
                }

                // TODO: Reset device after X errors
                if(_stopOnError)
                    return; // TODO: Return more cleanly

                // Write empty data
                DateTime writeStart = DateTime.Now;
                outputTape.WriteSector(new byte[blockSize], currentBlock);
                imageWriteDuration += (DateTime.Now - writeStart).TotalSeconds;

                mhddLog.Write(currentBlock, duration < 500 ? 65535 : duration);
                ibgLog.Write(currentBlock, 0);
                _resume.BadBlocks.Add(currentBlock);
            }
            else
            {
                mhddLog.Write(currentBlock, duration);
                ibgLog.Write(currentBlock, currentSpeed * 1024);
                DateTime writeStart = DateTime.Now;
                outputTape.WriteSector(cmdBuf, currentBlock);
                imageWriteDuration += (DateTime.Now - writeStart).TotalSeconds;
                extents.Add(currentBlock, 1, true);
            }

            currentBlock++;
            _resume.NextBlock++;
            currentSpeedSize += blockSize;

            double elapsed = (DateTime.UtcNow - timeSpeedStart).TotalSeconds;

            if(elapsed <= 0)
                continue;

            currentSpeed     = currentSpeedSize / (1048576 * elapsed);
            currentSpeedSize = 0;
            timeSpeedStart   = DateTime.UtcNow;
        }

        _resume.BadBlocks = _resume.BadBlocks.Distinct().ToList();
        blocks            = currentBlock + 1;
        end               = DateTime.UtcNow;

        // If not aborted this is added at the end of medium
        if(_aborted)
        {
            currentTapeFile.LastBlock = currentBlock - 1;
            outputTape.AddFile(currentTapeFile);

            currentTapePartition.LastBlock = currentBlock - 1;
            outputTape.AddPartition(currentTapePartition);
        }

        EndProgress?.Invoke();
        mhddLog.Close();

        ibgLog.Close(_dev, blocks, blockSize, (end - start).TotalSeconds, currentSpeed * 1024,
                     blockSize * (double)(blocks + 1) / 1024 / (totalDuration / 1000), _devicePath);

        UpdateStatus?.Invoke($"Dump finished in {(end - start).TotalSeconds} seconds.");

        UpdateStatus?.Invoke($"Average dump speed {blockSize * (double)(blocks + 1) / 1024 / (totalDuration / 1000)
            :F3} KiB/sec.");

        UpdateStatus?.Invoke($"Average write speed {blockSize * (double)(blocks + 1) / 1024 / imageWriteDuration
            :F3} KiB/sec.");

        _dumpLog.WriteLine("Dump finished in {0} seconds.", (end - start).TotalSeconds);

        _dumpLog.WriteLine("Average dump speed {0:F3} KiB/sec.",
                           blockSize * (double)(blocks + 1) / 1024 / (totalDuration / 1000));

        _dumpLog.WriteLine("Average write speed {0:F3} KiB/sec.",
                           blockSize * (double)(blocks + 1) / 1024 / imageWriteDuration);

        #region Error handling
        if(_resume.BadBlocks.Count > 0 &&
           !_aborted                   &&
           _retryPasses > 0            &&
           (canLocate || canLocateLong))
        {
            var        pass              = 1;
            var        forward           = false;
            const bool runningPersistent = false;

            Modes.ModePage? currentModePage = null;

            if(_persistent)
            {
                // TODO: Implement persistent
            }

            InitProgress?.Invoke();
        repeatRetry:
            ulong[] tmpArray = _resume.BadBlocks.ToArray();

            foreach(ulong badBlock in tmpArray)
            {
                if(_aborted)
                {
                    currentTry.Extents = ExtentsConverter.ToMetadata(extents);
                    UpdateStatus?.Invoke("Aborted!");
                    _dumpLog.WriteLine("Aborted!");

                    break;
                }

                PulseProgress?.Invoke(string.Format("Retrying block {0}, pass {1}, {3}{2}", badBlock, pass,
                                                    forward ? "forward" : "reverse",
                                                    runningPersistent ? "recovering partial data, " : ""));

                UpdateStatus?.Invoke($"Positioning tape to block {badBlock}.");
                _dumpLog.WriteLine($"Positioning tape to block {badBlock}.");

                if(canLocateLong)
                {
                    sense = _dev.Locate16(out senseBuf, _resume.NextBlock, _dev.Timeout, out _);

                    if(!sense)
                    {
                        sense = _dev.ReadPositionLong(out cmdBuf, out senseBuf, _dev.Timeout, out _);

                        if(sense)
                        {
                            _dumpLog.WriteLine("Could not check current position, continuing.");
                            StoppingErrorMessage?.Invoke("Could not check current position, continuing.");

                            continue;
                        }

                        ulong position = Swapping.Swap(BitConverter.ToUInt64(cmdBuf, 8));

                        if(position != _resume.NextBlock)
                        {
                            _dumpLog.WriteLine("Current position is not as expected, continuing.");
                            StoppingErrorMessage?.Invoke("Current position is not as expected, continuing.");

                            continue;
                        }
                    }
                    else
                    {
                        _dumpLog.WriteLine($"Cannot position tape to block {badBlock}.");
                        ErrorMessage?.Invoke($"Cannot position tape to block {badBlock}.");

                        continue;
                    }
                }
                else
                {
                    sense = _dev.Locate(out senseBuf, (uint)_resume.NextBlock, _dev.Timeout, out _);

                    if(!sense)
                    {
                        sense = _dev.ReadPosition(out cmdBuf, out senseBuf, _dev.Timeout, out _);

                        if(sense)
                        {
                            _dumpLog.WriteLine("Could not check current position, continuing.");
                            StoppingErrorMessage?.Invoke("Could not check current position, continuing.");

                            continue;
                        }

                        ulong position = Swapping.Swap(BitConverter.ToUInt32(cmdBuf, 4));

                        if(position != _resume.NextBlock)
                        {
                            _dumpLog.WriteLine("Current position is not as expected, continuing.");
                            StoppingErrorMessage?.Invoke("Current position is not as expected, continuing.");

                            continue;
                        }
                    }
                    else
                    {
                        _dumpLog.WriteLine($"Cannot position tape to block {badBlock}.");
                        ErrorMessage?.Invoke($"Cannot position tape to block {badBlock}.");

                        continue;
                    }
                }

                sense = _dev.Read6(out cmdBuf, out senseBuf, false, fixedLen, transferLen, blockSize, _dev.Timeout,
                                   out duration);

                totalDuration += duration;

                if(!sense &&
                   !_dev.Error)
                {
                    _resume.BadBlocks.Remove(badBlock);
                    extents.Add(badBlock);
                    outputTape.WriteSector(cmdBuf, badBlock);
                    UpdateStatus?.Invoke($"Correctly retried block {badBlock} in pass {pass}.");
                    _dumpLog.WriteLine("Correctly retried block {0} in pass {1}.", badBlock, pass);
                }
                else if(runningPersistent)
                    outputTape.WriteSector(cmdBuf, badBlock);
            }

            if(pass < _retryPasses &&
               !_aborted           &&
               _resume.BadBlocks.Count > 0)
            {
                pass++;
                forward = !forward;
                _resume.BadBlocks.Sort();

                if(!forward)
                    _resume.BadBlocks.Reverse();

                goto repeatRetry;
            }

            if(runningPersistent && currentModePage.HasValue)
            {
                // TODO: Persistent mode
            }

            EndProgress?.Invoke();
        }
        #endregion Error handling

        _resume.BadBlocks.Sort();

        foreach(ulong bad in _resume.BadBlocks)
            _dumpLog.WriteLine("Block {0} could not be read.", bad);

        currentTry.Extents = ExtentsConverter.ToMetadata(extents);

        outputTape.SetDumpHardware(_resume.Tries);

        // TODO: Media Serial Number
        var metadata = new ImageInfo
        {
            Application        = "Aaru",
            ApplicationVersion = Version.GetVersion()
        };

        if(!outputTape.SetMetadata(metadata))
            ErrorMessage?.Invoke("Error {0} setting metadata, continuing..." + Environment.NewLine +
                                 outputTape.ErrorMessage);

        if(_preSidecar != null)
            outputTape.SetCicmMetadata(_preSidecar);

        _dumpLog.WriteLine("Closing output file.");
        UpdateStatus?.Invoke("Closing output file.");
        DateTime closeStart = DateTime.Now;
        outputTape.Close();
        DateTime closeEnd = DateTime.Now;
        UpdateStatus?.Invoke($"Closed in {(closeEnd - closeStart).TotalSeconds} seconds.");
        _dumpLog.WriteLine("Closed in {0} seconds.", (closeEnd - closeStart).TotalSeconds);

        if(_aborted)
        {
            UpdateStatus?.Invoke("Aborted!");
            _dumpLog.WriteLine("Aborted!");

            return;
        }

        if(_aborted)
        {
            UpdateStatus?.Invoke("Aborted!");
            _dumpLog.WriteLine("Aborted!");

            return;
        }

        double totalChkDuration = 0;

        if(_metadata)
        {
            UpdateStatus?.Invoke("Creating sidecar.");
            _dumpLog.WriteLine("Creating sidecar.");
            var         filters     = new FiltersList();
            IFilter     filter      = filters.GetFilter(_outputPath);
            var         inputPlugin = ImageFormat.Detect(filter) as IMediaImage;
            ErrorNumber opened      = inputPlugin.Open(filter);

            if(opened != ErrorNumber.NoError)
            {
                StoppingErrorMessage?.Invoke($"Error {opened} opening created image.");

                return;
            }

            DateTime chkStart = DateTime.UtcNow;
            _sidecarClass                      =  new Sidecar(inputPlugin, _outputPath, filter.Id, _encoding);
            _sidecarClass.InitProgressEvent    += InitProgress;
            _sidecarClass.UpdateProgressEvent  += UpdateProgress;
            _sidecarClass.EndProgressEvent     += EndProgress;
            _sidecarClass.InitProgressEvent2   += InitProgress2;
            _sidecarClass.UpdateProgressEvent2 += UpdateProgress2;
            _sidecarClass.EndProgressEvent2    += EndProgress2;
            _sidecarClass.UpdateStatusEvent    += UpdateStatus;
            CICMMetadataType sidecar = _sidecarClass.Create();
            end = DateTime.UtcNow;

            if(!_aborted)
            {
                totalChkDuration = (end - chkStart).TotalMilliseconds;
                UpdateStatus?.Invoke($"Sidecar created in {(end - chkStart).TotalSeconds} seconds.");

                UpdateStatus?.Invoke($"Average checksum speed {
                    blockSize * (double)(blocks + 1) / 1024 / (totalChkDuration / 1000):F3} KiB/sec.");

                _dumpLog.WriteLine("Sidecar created in {0} seconds.", (end - chkStart).TotalSeconds);

                _dumpLog.WriteLine("Average checksum speed {0:F3} KiB/sec.",
                                   blockSize * (double)(blocks + 1) / 1024 / (totalChkDuration / 1000));

                if(_preSidecar != null)
                {
                    _preSidecar.BlockMedia = sidecar.BlockMedia;
                    sidecar                = _preSidecar;
                }

                List<(ulong start, string type)> filesystems = new();

                if(sidecar.BlockMedia[0].FileSystemInformation != null)
                    filesystems.AddRange(from partition in sidecar.BlockMedia[0].FileSystemInformation
                                         where partition.FileSystems != null from fileSystem in partition.FileSystems
                                         select (partition.StartSector, fileSystem.Type));

                if(filesystems.Count > 0)
                    foreach(var filesystem in filesystems.Select(o => new
                            {
                                o.start,
                                o.type
                            }).Distinct())
                    {
                        UpdateStatus?.Invoke($"Found filesystem {filesystem.type} at sector {filesystem.start}");
                        _dumpLog.WriteLine("Found filesystem {0} at sector {1}", filesystem.type, filesystem.start);
                    }

                sidecar.BlockMedia[0].Dimensions = Dimensions.DimensionsFromMediaType(dskType);

                (string type, string subType) xmlType = CommonTypes.Metadata.MediaType.MediaTypeToString(dskType);

                sidecar.BlockMedia[0].DiskType    = xmlType.type;
                sidecar.BlockMedia[0].DiskSubType = xmlType.subType;

                // TODO: Implement device firmware revision
                if(!_dev.IsRemovable ||
                   _dev.IsUsb)
                    if(_dev.Type == DeviceType.ATAPI)
                        sidecar.BlockMedia[0].Interface = "ATAPI";
                    else if(_dev.IsUsb)
                        sidecar.BlockMedia[0].Interface = "USB";
                    else if(_dev.IsFireWire)
                        sidecar.BlockMedia[0].Interface = "FireWire";
                    else
                        sidecar.BlockMedia[0].Interface = "SCSI";

                sidecar.BlockMedia[0].LogicalBlocks = blocks;
                sidecar.BlockMedia[0].Manufacturer  = _dev.Manufacturer;
                sidecar.BlockMedia[0].Model         = _dev.Model;

                if(!_private)
                    sidecar.BlockMedia[0].Serial = _dev.Serial;

                sidecar.BlockMedia[0].Size = blocks * blockSize;

                if(_dev.IsRemovable)
                    sidecar.BlockMedia[0].DumpHardwareArray = _resume.Tries.ToArray();

                UpdateStatus?.Invoke("Writing metadata sidecar");

                var xmlFs = new FileStream(_outputPrefix + ".cicm.xml", FileMode.Create);

                var xmlSer = new XmlSerializer(typeof(CICMMetadataType));
                xmlSer.Serialize(xmlFs, sidecar);
                xmlFs.Close();
            }
        }

        UpdateStatus?.Invoke("");

        UpdateStatus?.Invoke($"Took a total of {(end - start).TotalSeconds:F3} seconds ({totalDuration / 1000
            :F3} processing commands, {totalChkDuration / 1000:F3} checksumming, {imageWriteDuration:F3} writing, {
            (closeEnd - closeStart).TotalSeconds:F3} closing).");

        UpdateStatus?.Invoke($"Average speed: {blockSize * (double)(blocks + 1) / 1048576 / (totalDuration / 1000)
            :F3} MiB/sec.");

        if(maxSpeed > 0)
            UpdateStatus?.Invoke($"Fastest speed burst: {maxSpeed:F3} MiB/sec.");

        if(minSpeed > 0 &&
           minSpeed < double.MaxValue)
            UpdateStatus?.Invoke($"Slowest speed burst: {minSpeed:F3} MiB/sec.");

        UpdateStatus?.Invoke($"{_resume.BadBlocks.Count} sectors could not be read.");
        UpdateStatus?.Invoke("");

        Statistics.AddMedia(dskType, true);
    }
}