Reading an open multisession disc on another drive (CD-ROM)

A friend needs to read an open multisession disc written on my CD-RW
on their PC with only a CD-Rom. (No writer.) It's not recognized on
the second PC. Is this related to adding an ASPI layer to the second
PC? Something else?

Thanks

In article ,
says...
A friend needs to read an open multisession disc written on my CD-RW
on their PC with only a CD-Rom. (No writer.) It's not recognized on
the second PC. Is this related to adding an ASPI layer to the second
PC? Something else?

Thanks

its related to the fact that it needsto be closed, so a
cdrom can read it

--
Larry Lynch
Mystic, Ct.

George W. wrote:
A friend needs to read an open multisession disc written on my CD-RW
on their PC with only a CD-Rom. (No writer.) It's not recognized on
the second PC. Is this related to adding an ASPI layer to the second
PC? Something else?

It's related neither to an ASPI layer nor to either of the answers you
have been given so far.

If the session has been mastered and the *session* is closed, whether or
not the disc is closed, it should be readable on any CD-ROM drive. Of
course, there are incompatibilities of specific drives and specific
media, but that has nothing to do with whether the session or the disc
is closed.

It would be exceptional to have a mastered session open, so if the
*session* is open, you are probably writing variable-length packets.
Since the session is open, there is no runout track and the disc can
only be read on a writer; no CD-ROM will read an open session, with or
without a UDF reader.

If you are writing fixed-length packets, then the disc (and its single
session) are closed when formatted to the extent it can be. A modern
CD-ROM drive should be able to read it with a UDF reader.

Finally, if you have closed a variable-length packet session to UDF 1.5,
your friend will probably also need a UDF reader.

Mike
--

http://www.mrichter.com/

On Tue, 15 Jul 2003 21:31:27 -0700, Mike Richter wrote:

George W. wrote:
A friend needs to read an open multisession disc written on my CD-RW
on their PC with only a CD-Rom. (No writer.) It's not recognized on
the second PC. Is this related to adding an ASPI layer to the second
PC? Something else?

It's related neither to an ASPI layer nor to either of the answers you
have been given so far.

If the session has been mastered and the *session* is closed, whether or
not the disc is closed, it should be readable on any CD-ROM drive. Of
course, there are incompatibilities of specific drives and specific
media, but that has nothing to do with whether the session or the disc
is closed.

It would be exceptional to have a mastered session open, so if the
*session* is open, you are probably writing variable-length packets.
Since the session is open, there is no runout track and the disc can
only be read on a writer; no CD-ROM will read an open session, with or
without a UDF reader.

If you are writing fixed-length packets, then the disc (and its single
session) are closed when formatted to the extent it can be. A modern
CD-ROM drive should be able to read it with a UDF reader.

Finally, if you have closed a variable-length packet session to UDF 1.5,
your friend will probably also need a UDF reader.

Mike,

This is a multisession CD-RW written with Roxio. The session is
closed, the disc is open. The CD reader is about 3 years old. Can you
suggest a UDF reader? Will installing Roxio on the PC provide it?

Thanks.

16 Jul 2003: George W. wrote

This is a multisession CD-RW written with Roxio. The session is
closed, the disc is open. The CD reader is about 3 years old. Can you
suggest a UDF reader? Will installing Roxio on the PC provide it?

Maybe the CD-ROM is having a problem reading that CD-RW media (lower
reflectivity or something). Maybe copy it over to CD-R and see if that
helps?

--
L.V.X., brother mouse
http://www.mousetrap.net/otr/ Old Time Radio
http://greyhound.mousetrap.net/altus/ retired racer

"What's not fine is rarely is the question asked, are, is our children
learning?" GWB. http://www.mousetrap.net/pie.txt