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Workaround some Blu-ray drives not reporting correct size on READ DISC STRUCTURE.

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This commit is contained in:
Natalia Portillo
2018-03-26 17:40:25 +01:00
parent 8448f165ee
commit 5226b8493f
1 changed files with 28 additions and 1 deletions
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29
DiscImageChef.Devices/Device/ScsiCommands/MMC.cs
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@@ -155,7 +155,34 @@ namespace DiscImageChef.Devices
if(sense) return true;
ushort strctLength = (ushort)((buffer[0] << 8) + buffer[1] + 2);
buffer = new byte[strctLength];
// WORKAROUND: Some drives return incorrect length information. As these structures are fixed length just apply known length.
if(mediaType == MmcDiscStructureMediaType.Bd)
{
switch(format)
{
case MmcDiscStructureFormat.DiscInformation:
buffer = new byte[4100];
break;
case MmcDiscStructureFormat.BdBurstCuttingArea:
buffer = new byte[68];
break;
case MmcDiscStructureFormat.BdDds:
buffer = new byte[strctLength < 100 ? 100 : strctLength];
break;
case MmcDiscStructureFormat.CartridgeStatus:
buffer = new byte[8];
break;
case MmcDiscStructureFormat.BdSpareAreaInformation:
buffer = new byte[16];
break;
default:
buffer = new byte[strctLength];
break;
}
}
else
buffer = new byte[strctLength];
cdb[8] = (byte)((buffer.Length & 0xFF00) >> 8);
cdb[9] = (byte)(buffer.Length & 0xFF);
senseBuffer = new byte[32];