🚀 go-pugleaf

Recently I bought an NEC Multispin 6xi SCSI-2 CDROM drive and I am having a 
problem when I use with some games, most notably Phantasmagoria and Buried In
Time (The Journeyman Project). It works perfectly well with other games. 

The problem is that often when playing a game, the video on the screen will 
stop but the audio will continue. The video will then catch up and it starts
all over again. One thing I've noticed is that the CD-ROM drive drops from
six speed down to single speed when this happens (I can tell from the LCD
display) and then goes back to six speed. The same thing happens in Windows
and DOS. I wrote to NEC but they were no help.
What could be causing this?

I have a Pentium 66Mhz with a NCR 53C810 PCI SCSI card (on IRQ 10) with the
following devices attached:
- NEC Multispin 6xi CD-ROM drive (SCSI ID 1)
- Quantum ProDrive LPS540S hard disk (SCSI ID 2)
- Syquest SQ3270S (SCSI ID 3)

The SCSI chain is the following:
PCI card (terminated) -> HD -> CD-ROM -> Syquest (terminated).

I have a Diamond Stealth 64 VRAM PCI video card and a SoundBlaster AWE32
sound card (IRQ 5, DMA 1 and 3, port 220).

If anyone out there knows what could be causing this problem, it would be
much appreciated if they could email me.

Thanks in advance.

Mark Sztainbok
(mjs@cs.monash.edu.au)