Message-ID: <001301c092df$6f9b87c0$2d08e289@mpaul> From: "Matthias Paul" To: References: <3A7EB836 DOT 53CE34B1 AT compuserve DOT de> Subject: Re: prob audio CD on 2nd CD-ROM with NWCDEX Date: Fri, 9 Feb 2001 22:28:12 +0100 Organization: Rechenzentrum RWTH Aachen MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id QAA16302 Reply-To: opendos AT delorie DOT com On 2001-02-05, Utz Zarwell asked: > If running NWCDEX as redirector then my second CD-ROM drive > doesn't play audio CDs. Which utility are you using to play audio CDs? If not too large (< 500 Kb), can you please send it to me via private email (ZIPed with no long filenames) for analysis purposes? > Using MSCDEX its all ok. Accessing data CDs is ok. > The drive itself is ok for NWCDEX. What happens if you change the order of the two /D:drivername switches in the NWCDEX command line. Are you then able to play audio on both drives? Are you using any other redirector drivers, like any kind of networking software, DRFAT32, or the like? If so, please try to unload them all and see if this solves the problem. Also, try to swap the order of the redirector drivers loaded and check again. > Known problem? I do know of a few problems with NWCDEX, including improper exit in the case the installation fails (may leave drives in an intermediate state; crash if /E is used, but no EMS present; does not free environment after installation, and a few other minor quirks), not always recognizing some alternative Primary Volume Descriptors (PVDs) on some CDs (e.g. Kanji), and some more or less obscure problems in conjunction with playing audio CDs on systems with multiple CD drives (sometimes just not possible or crashes). In particular I recall having fixed a bug (in 08/1998) with INT 2Fh/1510h, where on multi platter CD changers the sub-unit field was not (properly) updated in the device driver header in respect to CX. However, I never had a chance to test this, because I donīt have a CD changer, and the NWCDEX 2.81 shipping with DR-DOS 7.03 does not contain this fix. BTW. NWCDEX issues before 1994-11-23 (before 2.50) did not update the sub-unit field at all, but from then up to 1995-01-11 (2.80) it was updated in some cases, but this partial solution was removed for 2.81 to work around a problem with Adaptecīs Audio CD Player for Windows. I would be interested in your results with for example NWCDEX 2.80, if you can find this in one of the late Novell DOS updates. You can find NWCDEX 2.50 in the OpenDOS 7.01 package. > Slave at first EIDE is a CD-RW; slave at second IDE 4xCDROM. Does this mean you *are* in fact using a 4x CD changer (which model?) or were you just refering to a quad-speed drive? (In the case you are using a actually using a CD changer, please also send me the DOS based drivers.) Well, the CD-RW should not make a difference, but on the other hand itīs not a "normal" drive, too, as it may also have multiple entities on the interface side (which model?). Hope it helps, Matthias ------------------------------------------------------------ Matthias Paul, Ubierstrasse 28, D-50321 Bruehl, Germany http://www.rhrz.uni-bonn.de/~uzs180/mpdokeng.html ------------------------------------------------------------