Lite-On 166 Rip Speed Problem

[EricS]

Hi All -

I have a Lite-On 166 DVD-ROM with the latest firmware (1A) in an external enclosure connected via FireWire to my Sony Vaio laptop.

I am trying to rip using DVDDecryptor. It starts at about 4x and gets upto about 8x by the end of the disk, but this seems slow compared to what other people are getting from this drive. I am using a DVD created on my panasonic dmr-e60 for this test.

Can anyone suggest how I can get faster rip speeds? Also, what is the best way to test rip speeds? I tried Nero disk speed, and the results are essentially the same, start at 4 and slooowwwly work its way up to 8.

Thanks,

Eric

[Gazorgan]

External enclosure is not the same as being connected to the IDE cable. There is additional overhead in the 'virtual' device you use in place of the IDE cable.

4x to 8x is pretty good. I get 2.7x to 7x, but it's a different DVDROM drive. A real test would be to put the drive on an IDE cable and see what speed it rips on the same DVD.

Edit: Forgot! Your sony harddrive is how fast? What RPM? It really matters at these speeds (8x is 9 MB/sec, and that's a LOT for a 2.5" drive!!!)

[noki]

EricS
you are lucky...i have the 166 on my other system and it cranks at 1.9x up to 2.6x. i cannot get my system to use DMA on my master units; only the 2 slaves run at DMA and i need those 2 unit running DMA so i can't setup the 166 as a slave.
on my main system my burner does the ripping and it starts at 2x and usually ends at 4.8x. i have also seen it start at 3.3x and end at 7x. i think it really depends on the disc you're ripping. some are just more complex than others.

[MOVIEGEEK]

If the disk is DVDR then 8x is normal,my Optorite will only read/rip a DVDR at 4x.

[Jimmykicker]

4x to 8x is normal for dual layer discs, but I usually get like 6x to 12x on burned DVDs. Non-burned single layer discs can reach speeds in excess of 16x...

[EricS]

Hmmm....lots of interesting info. What I wonder about is why rip speeds start slow and speed up - why don't they just start at the max?

I am going to try a DVD-5 and see if it is faster.

Maybe it is combo 5400 rpm hard drive and external enclosure. Sort of a bummer because I bought the drive because everyone was raving about 12X+ rip speeds.

Thanks for all the comments.

E

[MOVIEGEEK]

"What I wonder about is why rip speeds start slow and speed up - why don't they just start at the max?"

Because the laser reads and writes from the inner spindle then works it way to the outside(opposite of an LP),so as the laser progresses to the outside the surface is traveling at a higher speed(CAV).What you want is CLV but very few drives use CLV.

[EricS]

Thanks - makes sense.

E