16x DVD-ROM...the fastest?

[Manzelle]

16x DVD-ROMs have been out for the longest time...where is a 20x or 24x DVD-ROM...16x just isn't cutting it any longer...
Maybe I am blind and cannot find any...

 

[Viper96720]

When you play DVD's its only like 1x-2x speed anyways. 16x dvd speed is like 40x cd-speed.

 

[yhelothar]

16x are plenty fast though, considering 1x of DVDs are 1.5MB/s
so 16x is 24MB/s, which is extremely fast for cd medium, and as fast as older hard drives.

comparing to CDRs which is only 150KB/s per 1x, so 52x is only 7.8MB/s

 

[Manzelle]

It just sucks transferring 4.7GB worth of crap to my hard drive and waiting like 15 minutes...I'm sure something faster will come along soon enough...

 

[Jumpem]

Originally posted by: Manzelle
It just sucks transferring 4.7GB worth of crap to my hard drive and waiting like 15 minutes...I'm sure something faster will come along soon enough...

Not very likely... 16-20x is supposedly the rotational limit that the discs can handle.

 

[LeoMael]

And you'll rarely transfer anything at 16x on a dvd-rom unless it's at the very edge of the disc.

 

[boran]

the problem is that DVD discs are at the physical limits at 16speed, you could go faster, but then you'd have incidents with drives blowing disks to pieces (actually had that happen once with a 52speed CDR here) only way to go faster and not have that risk is multiple lasers, which is very hard to do.

 

[Tab]

Originally posted by: boran
the problem is that DVD discs are at the physical limits at 16speed, you could go faster, but then you'd have incidents with drives blowing disks to pieces (actually had that happen once with a 52speed CDR here) only way to go faster and not have that risk is multiple lasers, which is very hard to do.

Yes, thats why you don't see many 52x Drivers anymore. How fast can CD or the ciricular media spin until it loses it's integrity? I heard it was somewhere around ~9000RPMs.

 

[AIWGuru]

Originally posted by: Viper96720
When you play DVD's its only like 1x-2x speed anyways. 16x dvd speed is like 40x cd-speed.

Wrong. It's more like a 150x cd. Also, when you play a DVD movie, it's 1x, definitely not 2x. that's the metric used to determine the "x" value, the ammount of data per second needed to play a DVD. Same thing for audio cd. they play at 1x.

And, what does the original poster mean when he says 16x isn't fast enough? That's 24MB/sec.

I don't think whatever bottleneck you're experiencing is with the reading speed.

No. DVDs will not go faster than 16x just as CDs have not gone faster than 52x (without multiple read heads which don't work well) because it's at the limit of the rotational speed of the medium.

 

[AIWGuru]

Originally posted by: Manzelle
It just sucks transferring 4.7GB worth of crap to my hard drive and waiting like 15 minutes...I'm sure something faster will come along soon enough...

At full 16x speed, that should be 3.04 minutes. (it's only 4.38binary Gigs - DVD are measured on the decimal system as opposed to CDs which are measured in the binary system)
Of course, you're rarely at the outter edge of the disc so you'll rarely reach 16x. I, co-incidentally, need to restore a DVD backup of a movie which is just over 4 gigs. I'll time it and see how long it takes for you

 

[AIWGuru]

Done copying. It took 7 minutes and 13 seconds exactly. That's 4.21GB. What's more, this is with my DVD burner which only has a 12x read speed. If the same task takes you twice as long, maybe you just need a better DVD drive!

 

[Monoman]

why did you use your burner to copy the media instead of your 16x DVD rom in your signature?

 

[AIWGuru]

Originally posted by: Monoman
why did you use your burner to copy the media instead of your 16x DVD rom in your signature?

Because it's sitting in my lap as I type this!
I have removed it from the system because it's too loud. I also figured I didn't need it in there drawing power for no reason. The Burner seems to do everything just as well and quieter to boot!
I was about to stick it back in the system, however, which is why it's on my lap. It's on rails so it'll only take a second. I'm interested to see the speed difference between the two drives!

 

[AIWGuru]

WTF...
with the 16x rom is took 10:21. So the 16x liteon rom is much slower than the 12x liteon burner...

That's pretty weird. I wonder if it has anything to do with two drives being on the chain now.
Very weird.
In any case, that's still only 2/3rds of 15 minutes.

Maybe you should look into another drive.

Are you using cheap media? Is it +R or -R?

 

[Manzelle]

Next time I transfer 4+ GB from a disc I will physically time it...I am just going off that the status window says but as we all know that thing is never accurate...

 

[Tab]

Wrong. It's more like a 150x cd. Also, when you play a DVD movie, it's 1x, definitely not 2x. that's the metric used to determine the "x" value, the ammount of data per second needed to play a DVD. Same thing for audio cd. they play at 1x.

Hmm, might be able to make me understand the difference between megabytes and bits. I've confused myself again
Why can't the drives spin the disc at 16x in the center, the laser eye just cant read it that fast?

 

[Cheetah8799]

When I "rip" a movie DVD on my computer, sometimes they only rip at 2x or 4x, even though my dvd burner reads at 12x. I believe it is due to the dvd medium, not the drive. So when some of you say how it takes 15 minutes for you to copy a dvd, it probably isn't your drive, but rather the disc in the drive.

 

[AIWGuru]

Originally posted by: Tabb

Wrong. It's more like a 150x cd. Also, when you play a DVD movie, it's 1x, definitely not 2x. that's the metric used to determine the "x" value, the ammount of data per second needed to play a DVD. Same thing for audio cd. they play at 1x.

Hmm, might be able to make me understand the difference between megabytes and bits. I've confused myself again
Why can't the drives spin the disc at 16x in the center, the laser eye just cant read it that fast?

No, the outside edge of the disc is larger around. Therefore, just like anything else round and spinny, it is travelling much, much faster than the shorter around inner edge at the same RPM.

 

[gsellis]

AIWGuru,

The speed difference in the 16 vs 12 may be the result of both software (artifically restrained by model type) and by error correction. I remember reading about max rip speeds being throttled by the device settings and the software will comply.

 

[mikepeck]

If your "rip" speed is limited to 2x, search for a firmware update to remove that. Google for firmware css rip speed and it will come up.

 

[AIWGuru]

Think of it this way.
My DVD burner (and my roommate's Sony aswell) can record a full DVD in about 20 minutes at 2x. They both take about 10 minutes to record a full DVD at 4x.
If you can burn data in 10 minutes at 4x how come it takes you 15 minutes to READ it back at 16x?
Something's obviously wrong there.

 

[Belzer]

16x CAV should take ~5 min for a full single layer DVD. If you have bad media the DVD-ROM will slow down and it will take longer time. 4x CLV burning does not take 10 min, it's 14-15 min for a full single layer DVD.
The equivalent rpm of 52x CD is about 19x-20x DVD speed but I'm guessing it's hard to get reliable reading at this speed and that's why no one release faster than 16x DVD-ROMs.