I was installing and had an IO error when I tried to decompress stage1 from the livecd. I had other issues as well, but this cd has been burned on a shining new media at 4x speed just to be sure.
Workaround: downloaded the stage from the internet.
Steps to Reproduce:
1.try to decompress stage1 per installation instructions
stage1 should have been happily read from livecd and decompressed
Motheboard: MSI K8N Neo Platinum
Athlon 64 3000
1GB DDR 400 RAM
4 x 200GB SATA HDs on RAID
filesystem: reiserfs (not reiser4)
DVD drive: LG 4160B
Well, it seems to work for everyone else, so I would suspect either your media or your drive. There's no way we could possibly resolve this, so I am marking as CANTFIX.