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From: cjoughin@unixg.ubc.ca (Chris Joughin)
Newsgroups: alt.cd-rom
Subject: Re: Do you ever use Multisession Disc?
Date: 28 Apr 1994 00:35:13 GMT
Organization: University of British Columbia
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: 	Just Recently I got a CD-R disc, which is recorded in Multisession.
: As I think before, I think I can just put in the disc, and a normal dir/w
: command will list all files in all sessions. But I'm wrong. I use my
: Toshiba 3401B to read the disc, but I can only see one session -- sometimes
: the first session, other times another sessions. I try to check my driver
: configuration, finally, I find that 'cdsesn' command in CorelSCSI can
: switch different sessions.

That's right -- by definition, only one session can be displayed by DOS 
or Windows at the same time.  Basically it's like having a partitioned HD 
(almost) where the data is physically on the same disk, but in different 
volumes, and you can only get at one at a time.

: But here comes one problem: if a file named 'test.txt' in session1 is
: duplicated with another file also named 'test.txt' in session2, then
: when I 'dir' it, which one will be shown??

Doesn't matter if you dupe file names between sessions.  Whatever session 
is "active" will be displayed, and as far as DOS or Windows is concerned, 
the other files on the disc (other sessions) don't even exist.  

BTW I'm not sure about OS/2 and multi-session discs; that's why I keep 
saying DOS and Windows.  Any OS/2ers wanna pitch in here?