[A complimentary Cc of this posting was sent to
Mr. C
], who wrote in article <41ff67df$0$6317$5fc30a8@news.tiscali.it>:
> Hi
>
> I have a CDRW I created on the Desktop using
> UDF, here the read & write just works fine.
>
> If I try to read the CD on the Thinkpad, I get
> a message saying the media it's not formatted
> right.

Likewise here; two computer with identical setup (cloned from one to
another); one (newer CD drive, writer) can read UDF, another (older CD
drive, reader only) can't. Try running

cdrecord -v dev=0,1,0 -prcap

on them and compare results (the option dev=... should be changed; run
with -scanbus option to find out). I did not compare the output yet;
but I would watch for packet-related stuff (though I have no idea why
packets may be needed for read...).

Hope this helps,
Ilya