dvd+-rw won't read or write

catpants · 04-10-2005, 10:38 PM

I have a Mad Dog MD-16XDVD9A2 under Slackware 10.1. The drive shows up just fine (at boot, in /dev and /proc/ide, cdrecord -scanbus, etc.) but if I try to mount a cd or record a cdr, it says that there is nothing in the drive. I've tried it using kernels 2.6.11.7 and 2.4.29, and under knoppix as well, with no success. Any thoughts?

Thoreau · 04-10-2005, 11:46 PM

http://mdmm.com/drivers/OpticalDrive...9A2_FW_1F3.exe

You can attempt a firmware update. What does cdrecord --scanbus say, and where are you mounted? /dev/cd0 to /mnt/cdrom?

catpants · 04-12-2005, 01:03 AM

I already found the firmware update, but I don't have windows. :/

Quote:

cdrecord -dev=ATAPI -scanbus
Cdrecord-Clone 2.01 (i686-pc-linux-gnu) Copyright (C) 1995-2004 Jörg Schilling
cdrecord: Warning: Running on Linux-2.6.11.7
cdrecord: There are unsettled issues with Linux-2.5 and newer.
cdrecord: If you have unexpected problems, please try Linux-2.4 or Solaris.
scsidev: 'ATAPI'
devname: 'ATAPI'
scsibus: -2 target: -2 lun: -2
Warning: Using ATA Packet interface.
Warning: The related Linux kernel interface code seems to be unmaintained.
Warning: There is absolutely NO DMA, operations thus are slow.
Using libscg version 'schily-0.8'.
scsibus0:
0,0,0 0) 'Lite-On ' 'LTN486S 48x Max ' 'YDS8' Removable CD-ROM
0,1,0 1) 'MAD DOG ' 'MD-16XDVD9A2 ' '1.F0' Removable CD-ROM

The cdrom drive is mounted /dev/hdc -> /mnt/cdrom
The Mad Dog is mounted /dev/hdd -> /dev/dvd

Thoreau · 04-12-2005, 01:26 AM

uhh..

/dev/hdd-> /dev/dvd, but where is your mount point?

/mnt/dvd?

if not, then make the directory.

Try to mount like, mount -t iso9660 /dev/hdd /mnt/dvd

If that doesn't mount then you may want to flash the BIOS on a winbox, because it isn't talking properly- or it may be a bad drive. You also didn't state what burning software you are using.

catpants · 04-12-2005, 03:38 AM

Whoops, I mistyped there. That should be /dev/hdd -> /mnt/dvd.

Here is the output when I try to mount a CD:

Quote:

$ sudo mount -t iso9660 -o loop /dev/hdd /mnt/dvd
/dev/hdd: No medium found

As for burning software, I've been trying to use cdrecord. I don't see how that might be relevant, though, when I can't even mount a cd. :/

Update: It seems to read DVDs okay. Only CDs are giving it trouble. It probably is a firmware issue. I'll have to find some way to flash the drive. :/

catpants · 04-12-2005, 04:53 PM

Well, I updated the firmware and am still having the same problem. I'm beginning to think that this drive just isn't compatible with Linux.

Thoreau · 04-12-2005, 05:13 PM

If it's reading DVD's and not CD's.. then yea, it's not a library issue and the drive is probably just crap.

I know that Maddog stuff is Microcenter, CompUSA, and the likes commodity drive. A quick scan of pricewatch will get you a nice plextor or lite-on. Both are rated very well for DVD burning.

Sorry about the bum drive. Some are supposed to be rebadged NEC's, some aren't. I dunno, I do plextor myself. Good luck.