Thanks for the reply,
The system is self built, with a PC CHIPS M900 P4 Motherboard. 1.5 Ghz
Intel Tehama 850 Northbridge and Intel 82801BA (ICH2) Southbridge chipsets, combining support for two-channel RAMBUS DRAM (RDRAM), 2X/4X AGP (1.5V only), and the AC 97 codec.
The CD Drive is a pioneer DVR-A18MBK. It was taken from a much newer PC.
Reads other disks OK, but when it comes to some international music titles I used to test the audio, just skips from track to the next, not playing any. Never had that problem before.