Read Speed in the Tank

[aiannar974]

Hello,

I have an HP ZV6005 laptop with a DVD burner. The burner is a GCA-4080N. My read speed is way off. I am at 0.8x (about 1,100 Kb/s) with all software tried including, Nero, DVDFab, DVD Decrypter. Write times are still at 8x (11,000 Kb/s). It shoudl be at least 4x. Any idea what is wrong? The problem persists will all disks including home videos.

Anthony

[Blue_MiSfit]

Sounds like RipLock to me.

[aiannar974]

What is Riplock?

It is a virus or software or a condition?

Anthony

[Digga]

@ aiannar974:
http://en.wikipedia.org/wiki/Riplock

[aiannar974]

OK - I understand Rip lock, however, this is not something that has existed forever on my machine. I have just noticed it in the last 2 weeks. COuld this still be Riplock?

Anthony

[Inventive Software]

Have you tried running a DVD cleaner through it?

[aiannar974]

i'll give that a try

[aiannar974]

I tried cleaning the drive. Did not change anything.

In addition, I just tried playing a dvd with WinDVD. I am getting chopping video and sound.


Anthony

[aiannar974]

could i be having a problem with codecs?

[jeffy]

http://forum.digital-digest.com/showthread.php?t=61905

[aiannar974]

Thanks - That was it. I am now about double the speed. Around 1.8 to 2.0 times. Still is under the rating of the drive, but twice as good and maybe media related.

I was trying to copy a scratched disk and that may have set it to PIO.

Thanks,

Anthony

[jeffy]

Thanks - That was it. I am now about double the speed. Around 1.8 to 2.0 times. Still is under the rating of the drive, but twice as good and maybe media related.

I was trying to copy a scratched disk and that may have set it to PIO.

Thanks,

Anthony
Glad it worked for you. I would give it another try:
go there and get a free Nero CD-DVD Speed, go to last tab and try changing the read speed and let it check the disc. Who knows, might help?
http://www.cdspeed2000.com/

There is also Nero Drive Speed, haven't you incidentally turned the read speed down, have you?
(Also available at)
(http://www.snapfiles.com/get/nerodrivespeed.html)

[aiannar974]

I ran Nero drive speed, it was set at 2 sec spin down and 4x read (this is what the drive is rated).

I then ran drive test and the graph shows a steady ramp from 1.70x to 4.04x with an average of 3.03x.

Is it normal for a drive to ramp like that.

Anthony

[foxyshadis]

Yes, constant angular velocity means linear velocity increases as radius increases (in other words, it reads faster as it approches the outside of the disc). Some drives will be rated based on their average speed, some based on max speed, it depends on the manufacturer.

[setarip_old]

@aiannar974

Hi!

I just wanted to mention that you should be aware that "ripping" speed will be less than pure reading speed, due to the fact that, in addition to simple reading, identification and removal of copy protection is occurring during "ripping"...

[foxyshadis]

That's only true for PIO mode, or where you're severely limited by computational speed. In DMA, especially with overlapped I/O, the chipset keeps the drive transferring into main memory as fast as possible and hands off the data as it comes, so you always have full speed. DVD rippers are totally I/O bound, even if they're doing some light processing like DeCSS.

[setarip_old]

That's only true for PIO mode, or where you're severely limited by computational speed.It is also true (other than using AnyDVD), even in DMA mode, when confronted with the more recent "ARccOS" copy protected DVDs, which are not limited to "some light processing like DeCSS."...

[Inventive Software]

I found my drive was in PIO mode, and that explained my slow install process for ToCA Race Driver 2 last week. Playing ordinary DVDs made it skip too. No matter how I tried to change PIO so that it was DMA instead, it wouldn't have it. So I flashed it, my drive's DMA, and I'm a happy man! :)

[setarip_old]

@Inventive Software

Hi!

Although your post is actually off topic for this thread, for future reference, if your drive should be reverted to PIO mode:

In the Device Manager (via the Control Panel>>System>>Hardware>>Device Manager), you simply have to remove the applicable IDE channel (Click on "IDE...Controllers") and let your computer reset it to DMA as follows:
Right click on the pertinent channel in Device Manager
Click on uninstall
Reboot
After rebooting go back to Device Manager and change the setting to "DMA if available"...

[Inventive Software]

Ah, removing it! Didn't try that, tried resetting several times, since I normally Hibernate my laptop... thanks Setarip_old, I'll bear that in mind next time. ;)

One thinks you should be "modded"! :D

[setarip_old]

One thinks you should be "modded"!Thanks for the (I presume) compliment, but let's just say it's not my cup of tea ;>}

[Inventive Software]

Twas a compliment, but fair do's. ;)

[setarip_old]

but fair do's.I'm sorry, you've got me stymied> What does this mean?

[Inventive Software]

Ah, sorry. It's typical English (as in England) speak, and basically means "fair enough". At least, that's how I understood it when I first heard it. Hope this helps. ;)

[setarip_old]

Thanks for clarifying ;>}