Greetings Denny,
I have been using my FD w/ Knoppix 4.0.2 for a while now. I mount the FD first, then go into winbblow$xp-pro ( which is what the rest of the office has) Occassionally I get a block error but usually the files are accessable. I have , so far, recovered several gig of data on three different drives. Having said that I do have to admit that the WD cavier drive is one I almost gave up on. I used two tools, A Lexar 1GB FD, A Sandisk 512MB to move the data to. I tried Knoppix 3.9 CD first and struck out. Unfortunately, it wasn't a straight transfer. I tried to move the files first - wrong move I lost one in the process. Then I used and old Maxtor 4GB ide drive with an external connection copied the data [ cp-r {path & file name } then the destination drive which had a fat32 fs. I was concerned about the copy from NTFS to Fat32 but I needen't have. It went fine. The move to the FD went smooth from there. Since I have not used Sony's memory stick but I suspect proprietary formatting, like Sony is so fond of, as your most likely problem. BTW, After their last fiasco there is no way I will ever use sony equiptment, programs or disks ever again. Good luck and I hope this helps. I have had fairly good luck with the lexar flash drives.
I Remain ~
In Service & In Health,
Captain Cautious