#1 Burning Software

Hello,

I have been trying to get _SetSpeeds to work and I am having no luck at all . I have a Pioneer DVD-R 105 which supports 1,2,4x burning. The lowest speed being 1385 and the highest speed being 5540. I have tried using 1385 and the constant from CDVD_SPEED_IN_KBPS_8X (1400) to try to set the writer to a lower speed. Neither of them work. I even get a return message of EN_SUCCESS, but when I use _GetSpeeds, the current write is still 5540 . _SetSpeeds does not seem to work for the read speed either. The media I am using is 4x DVD-R media and I cannot understand why the current speed is not changing. The whole idea behind using _GetSpeeds is of course to verify that the new write speed has been set.

Myron L Stewart
Ingeniak

1) Write speed. One of our engineers has PIONEER 105 installed in his machine. He'll do some of the experiments tomorrow and would return status ASAP. Me and Artem have 107 and 106 models accordingly and we'll do the same speed related tests a bit later.

What other software says for the same combination of the device + inserted media? F.e. can Nero burn an image to this 4X media on 1X or 2X speed? DVD-R support test mode burning so you'd not spoil anything if you'd try. If you can - please do this. It would help us a lot to isolate this problem (if present).

2) Read speed. For unrecorded media it would not change. It's normal.

Odd, your message got posted twice

I'll do a test burn with Nero and see what happens. I can remember burns in the past being done at 4x and 2x (5540 and 2770). I have a few files I need to archive anyway.

If it does not work this time, I'll try re-adjusting the IDE cables.

Myron L Stewart
Ingeniak

1) Fixed.

2) Don't think it's hardware problem. More to follow...

Finally I've got chances to check your bugreport. Well... It seems some of the devices do really skip reporting valid speed for DVD media in mode page 0x2A (mechanical capabilities page). So "generic" way to set/get read/write speeds does not work for them. We'll add code to deal with DVD media thru set/get streaming command. So please treat this issue as marked "pending". I guess next release (1-2 weeks from today) would have this issue sorted out.

Thank you very much for pointing!

P.S. PIONEER 107 does not report DVD speeds in pointed mode page. And NEC 3500 (they use the same chipset and are virtually the same device) - does. Wierd!

I was just about to let you know from my report. Nero was able to set the speed to 2770 (2X). Good news on the find. We have a while before we go public with our product. Everything else can still be tested with we send the product to some beta testers.

Thank you for your research. I'll keep my eyes peeled for the next release.

Myron L Stewart
Ingeniak

Nero uses set/get streaming commands to deal with DVD media. Just verified this with software SCSI bus analyzer.

We'll do the same in our code

Ok, I'm having this same problem. I assume the new version has incorporated the new system so I'm wondering why I can't set the write speed for a DVD+R DL. I'm using a Plextor 716a burner. The speed always comes back as the maximum(6x or 8310). I've tried to set every speed slower than this but GetSpeed always comes back with 8310.

I'm emailing the log file.

Note: Nero lets me select 6x,4x or 2x.

Nathan

I've sent updated experimental DLL to you. Please let us know about results. Thanks!

2All: The issue is gone now and PLEXTOR-related fix would be included to next StarBurn update. Thanks to everyone who helped!