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This is mainly for XP users but is informative to all.
I recently found out why my ripping speed seemed to be slow even though I was using a Artec 16X DVD drive and thought this might help some of you. There seems to be a problem with Windows XP Pro where it does not detect CD or DVD ROMs correctly for PIO and DMA. DMA is the idea mode and stands for Direct Memory Access. It does not use near the processor power as PIO and there for will rip faster. You can check your speed easily by ripping some stuff with DVD Decrypter or Smart Ripper. If you are sure your drive is DMA but XP seems stuck on PIO. First check in device manager under IDE controllers that you have it set to "DMA if available" for your DVD Rom. If you reboot and recheck and it is still stuck on PIO which mine were then go to run and type in regedit. Find the following key:
000X "X" being the number of the controller such as 0001 for primary and 0002 for secondary. Under this location find the key "MasterIdDataCheckSum" or "SlaveIdDataCheckSum" depending on which one your drive is and delete the value for the key. this will force XP to redetect your drive after reboot. Please be careful when editing your registry.
I have gotten both of my XPs running in DMA mode using this methode and on a single layer DVD I can easily hit 10X or higher. In PIO mode I could only hit 2X. That is a big difference and since both of my XP Pros had the problem I would guess it is very common. I hope this helps some of you.
321 - Out standing job on 1.4.
-=Enjoy=-
Halftech
ou812
Member
29 Jan 2003 12:35 AM
Isn't the maximum speed on most DVD burners 2x?
Halftech
Junior Member
29 Jan 2003 9:49 AM
Yes - Max burn speeds vary from burner model to burner model of 1X, 2X, and soon 4X. But the max ripping speed is usually 8X or 16X with DMA. It is not a good idea to use the burner to rip with. It adds wear and tear on it and it usually can not rip nearly as fast as a DVD Rom drive.
-=Enjoy=-
Halftech
Turak
Junior Member
29 Jan 2003 10:04 AM
Be careful when talking about DVD drive Reading/Ripping Speeds.
For example; The Sony DRU-500A DVD Burner
The drive is rated at 8x for DVD. BUT, that is only when reading a DATA disc.
If you check the fine print you will see that it only can read DVD-Video at 2x.
Another Example; Lite-On LTR-163 or LTR-166 DVD Reader
These drives are rated 16x, but again, that is for Data disks Only. They actually average about 4x-6x when ripping DVD-Video.
Also a little known fact. Reading a single layer DVD (DVD-5) tends to be a little faster than reading a dual-layer DVD (DVD-9).
I personally use a DVD Reader (Lite-On LTR-166) to rip the movie and a DVD Burner (DRU-500A) to write them with. Works very well. I average about 12-15 minutes to rip (per DVD) and about 22 minutes to burn (DVD+R at 2.4x) a completely full DVD.
It does seem that all the DVD Burners that I have looked at are limited to 2x when reading DVD-Video.
Hope this helps....
This message has been edited since posting. Last time this message was edited on 29 Jan 03 10:07 AM
Halftech
Junior Member
29 Jan 2003 12:43 PM
I do not totaly agree. It is true that dual layer will rip slower than a single layer although arent all movies on DVD done in DVD video? I was ripping a cheap corny movie last night in DVD Decrypter called "In The Woods" and it was hitting peaks of 15X. It took 4 min to rip but I noticed it was not encrypted at all. Then I ripped "Monkey Shines", this is also a dual sided single layer, and it's average was 10X with Dvd Decryter. Are these not Dvd Video? Another note is any time you start ripping they will start at 2X and increase speed from there if using DMA mode. I take this as the speed of the DVD at the center is slower than the outer edge.
-=Cheers=-
Halftech
*****************************************
Athalon 1800XP
512 DDR 266
Sony DRU-500A
Artec 16X DVD
30 and 40 GIG ATA100
Windows XP Pro
mwillett
Member
29 Jan 2003 4:59 PM
I too had the problem w XP being stuck on using PIO for my DVD-ROM. Not knowing about the registry hack, I downloaded the Intel Application Acelerator software. That updated XP to use DMA mode on my DVD-ROM.
Something to consider if you have a recent Intel motherboard & don't wannt to edit the registry.
Halftech
Junior Member
29 Jan 2003 5:27 PM
mwillett
Interesting. My mother board is a Shuttle AK31 and it does not have the Intel chipset. I think it is VIA.
-=Later=-
wmcdowel
Inactive
29 Jan 2003 6:47 PM
I'd run into the XP PIO mode problem before. When XP is in DMA mode (DMA if Available), it will try to use DMA. If it runs into any problems (x number of tries with an unacceptable response), it will downgrade to PIO mode. The problem is that once it does this, it doesn't re-test and upgrade back, even if DMA mode is working. This is why you can sometimes have the DMA if Available selected, and still be showing that the device is operating in PIO mode, even though it's DMA capable. Rather than the registry edit, I just deleted the drive in device manager, and let the system re-detect it on restart. DMA worked fine after that.
I also ran into that fine print notice about the 2x read speed for DVD Video on the Sony DRU-500a. I wound up putting a 16x DVD-ROM drive back in to get better rip speeds.
It is already over 90 days since last post to this thread, you're not allowed to post here anymore.
