Thanks for your answer. Le Samedi 7 F�vrier 2004 12:19, vous avez �crit : > > growisofs can't burn dvd-r. It works fine with dvd+rw. > > I haven't tried yet with +R nor -RW. > > I've made several atempts, always failing the same way: > > -speed does not work > > burning fails trying to write block 0. > > > > INQUIRY: [PLEXTOR ][DVDR PX-708A ][1.04] > > Mounted Media: 11h, DVD-R Sequential > > Media ID: MXL RG01 > > MXL means Maxell, right? Note that Maxell DVD-R brand was exposed to > counterfeit attempt, see > http://www.maxell.co.jp/e/release/20030704.html. How does your emballage > look like? > > > Write Performance: 4.0x1385=5540KB/[EMAIL PROTECTED] -> 2294911] > > Speed Descriptor#0: 02/2298495 [EMAIL PROTECTED]/s > > [EMAIL PROTECTED]/s Speed Descriptor#1: 02/2298495 > > [EMAIL PROTECTED]/s [EMAIL PROTECTED]/s > > Normally "Write Performance" appears in one of the "Speed Descriptor#N" > as well. The fact that it doesn't means that unit failed to properly > identify the media...
You're probably right. It's an unbranded 50 spindle. However, I tried with an other brand (Sky which identifies as 'VDSPMSAB 01') and had the same problem. However those DVD were given for 4X and I successfully burnt 2 out of 5. > > > # growisofs -dvd-compat -Z /dev/scd1=Input.iso > > ... > > > > :-[ [EMAIL PROTECTED] failed with SK=3h/ASC=02h/ACQ=00h]: Input/output error > > 3/02/00 stands for "NO SEEK COMPLETE" (see > http://fy.chalmers.se/~appro/linux/DVD+RW/keys.txt for transcripts), > which just bizarre in this context and therefore most likely indicates > poor firmware support for this media. Well, given that Maxell is > well-established brand, it also might be as simple as media defect on > that particular disk... Did you try several disks or just one? I tried several. > > > # growisofs -dvd-compat -speed=1 -Z /dev/scd1=Input.iso > > > > :-( Failed to change write speed: 5540->1385 > > Well, it's hardly growisofs fault. As mentioned above, unit apparently > gets speed settings backwards. I would strongly recommend to try another > media brand. A. I dug a bit further into the speed problem. It seems the unit always returns the highest performance for the type of media regardless of the speed requested. I mean the command GET_PERFORMANCE (0xAC) with param "Overall Write performance" (4) would always return 5540 for DVD-R's. However the command 0xAD returns the correct current write speed as set by the 0xB6 command. I'm going to change a piece of code, just to see how far it goes without testing back the speed. Do you have any pointer on a kind of command reference for the DVD devices ? tia Nynal -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
