Extensive rework of CD-ROM image handling;
The settings save code now forces some devices' (SCSI disk, CD-ROM, etc.) pointers to NULL before resetting the machine - fixes segmentation faults after changing settings;
Added the NCR 53c825A and 53c875 SCSI controllers;
Fixed IDE/ATAPI DMA;
Slight changed to PCI IDE bus master operation.
Fixed CD-ROM sector reading from CUE/BIN images with 2048-byte sectors;
Fixed existing CD-ROM Mode 2 support and adding support for the remaining variants of Mode 2;
The Windows CD-ROM IOCTL code now correctly determines the track type, fixes CD Audio over IOCTL;
Applied all PCem sound-related commits;
Sound Blaster 16/AWE32 mixer effects now also apply to CD Audio when the Sound Blaster 16 or AWE32 is selected.