Mail Archives: opendos/2002/10/02/20:02:17
Thanks again, Joydeep.
Your description of this "ISO level 2" compatibility seems to match
my findings, so it sounds like this may be the problem. Odi's LFN
Tools mostly bypass MSCDEX/NWCDEX, so they seem to cater for
more oddball disk formats, than any alternatives for DOS that I'm
aware of. As you say, however, they don't allow normal disk access,
since they aren't drivers. I can use them to view directories and copy
files, which is much better than nothing.
I also tried Henrik Haftmann's DOSLFN driver, but this didn't help.
Henrik seems to be adding more support for various CD-ROM
formats recently, so maybe a future version of DOSLFN will be
able to provide "normal" access for such disks.
Anyway, I'll try to find out what options were used when this disk
was created, although this information may not be available ...
Joe.
> -----Original Message-----
> From: Joydeep Mitra [SMTP:jolly_joydeep AT hotmail DOT com]
> Sent: Wednesday, October 02, 2002 11:51 AM
> To: opendos AT delorie DOT com
> Subject: RE: CD-ROM Compatibility
>
> > As I said originally about this problem, this CD-ROM seems quite OK
> > under Windoze 95 and Linux (using the same hardware as for DR-DOS).
> > Do you know if this would be so, for a "non-finalised" disk?
> >
>
> Wow, you've had a long discussion on this issue while I was away.
>
> No if the disk is not finalised then generally speaking it won't be
> readable in Windows or Linux. I think the problem with your disk is that
> it is ISO 9660 Level 2 (31 character file names) with Joliet extensions.
> Both Windows and Linux support ISO Level 2, but DOS doesn't. Obviously
> this LFN driver you found can read this too (but probably won't let you
> change directories or anything like that since DOS doesn't support the
> file system).
>
> The way to know definitively is to ask what options the person who made
> the CD chose when they created the CD (as all of these options can be
> chosen).
>
> Joydeep
- Raw text -