Thanks for the replies guys, well my CD Drive is ATA, i did run the disk on a old PC Celeron 333 256Mb RAM, and it all loaded perfectly, i did burn the CD at about 40x........i think i may try KNOPPIX_V3.6 at 4x and seee if thats happier with my Newer system which dosent make sense but computers dont do they LOL. Any further ideas though really appreciated