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Cd reader for burnin on the fly at 40X

How fast is too fast?

Cd reader for burnin on the fly at 40X

Postby ryus on Thu Jan 01, 1970 3:05 am

Since my Ultraplex40max is maxed out at 20X, what cd reader would be best overall for burnin on the fly at 40X with my plexwriter40?? Anyone here actually do it? I experimented with a friend's Liteon 163h drive, which reads cds at 48X, but the drive didnt seem to keep up with my writer at 40X. Obviously I want to burn without the Burn proof kickin in. I'm not really sure why the Liteon DVD drive couldnt handle it, maybe because it was an IDE drive?? and not a SCSI?? By the way, I made sure all the setups were optimal, ie. DMA enabled, writer on master, reader on slave etc....

Feedback would be appreciated!!!
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Postby Flyer22 on Thu Jan 01, 1970 3:21 am

www.cdspeed2000.com

Check it out kenwood could do it but that drive aint very good graded in here!!
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Postby dodecahedron on Thu Jan 01, 1970 3:21 am

Kenwoods don't exist for quite some time.
even then they were problematic, so i've read in the forums.
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Postby TheWizard on Thu Jan 01, 1970 3:21 am

More specifically, look at this page - http://www.cdspeed2000.com/go.php3?link ... sults.php3

Aside from the Kenwood, it looks like your best bets for reading data are the following, in order from best to worst:

Afreey CD-2056E
Artec 56X
EPO CR-854E
Hi-Val G6D
Delta OIP-CD5200A
LiteOn LTN526S
Sony CDU5211
Creative CD5233E
AOpen CD-952E

The Lite-On LTD163 falls just short of the 40X mark according to CD Speed.
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Postby Flyer22 on Thu Jan 01, 1970 3:22 am

TheWizard as some PORTUGUESE genes don´t you man?? lolllllll
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Postby TheWizard on Thu Jan 01, 1970 3:22 am

Com certeza, senhor. :)
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Postby Flyer22 on Thu Jan 01, 1970 3:23 am

Aqui fala-se PORTUGUÊS não é ??

To those who lack that culture lack not speaking Portuguese:

In here Portuguese is spoken!!
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Postby TheWizard on Thu Jan 01, 1970 3:25 am

Portuguese should be spoken everywhere!

But seriously, we are getting way off-topic. :)
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Postby Flyer22 on Thu Jan 01, 1970 3:26 am

don´t worry cause this forum aint strict as some are ppl can talk just about anything Ian is a nice guy!! 8)
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Postby TheWizard on Thu Jan 01, 1970 3:28 am

Tá bom então. :wink:
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Postby Flyer22 on Thu Jan 01, 1970 3:29 am

lolllllllll :D Cya later
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Postby mike_s104 on Sat Dec 07, 2002 11:22 pm

I have a LiteOn 163 DVD and it will read as fast as my 48X CDR will write.
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Postby cdrfreak2003 on Wed Dec 11, 2002 11:10 pm

wut does 'on the fly' mean?
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Postby BuddhaTB on Thu Dec 12, 2002 1:32 am

cdrfreak2003 wrote:wut does 'on the fly' mean?

Are you serious?

It means to copy from the original CD directly to a blank CD using two different optical drives at the same time. One of the drives is used for reading from the source CD, while the CD-RW drive is used to write to the blank CD.
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Postby cfitz on Thu Dec 12, 2002 1:35 am

As opposed to copying from the source optical disc to the hard drive first. And then copying from the hard drive to the destination optical disc. Since hard drive transfer rates are so much faster than optical drive transfer rates, there is less chance of a buffer underrun when copying to an intermediate image on the hard drive, and more of a chance of buffer underrun when doing an on-the-fly copy. However, this isn't so critical these days, since modern burners have buffer underrun protection schemes that can deal with buffer underruns and prevent coasters.

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Postby NightFlyer on Wed Apr 09, 2003 2:45 pm

One thing to remember about 40X burning... it's not 40X from start to finish!

all high speed burbers use Zoned Constant Angular Velocity. This means that at particular points during the burn, the drive will step up burn speed as the tracks get longer from the inside to the outside of a disc. I have a Lite-On LTD-163 and can do on-the-fly copies as the Lite-On's read speed is adequate for each zone step. (At 40x burn, the first zone is only written at 20X)

As long as the drive you are reading with can attain 24x or better from the start (center) of a disc, and goes to 48x+, you should be in good shape.

See the following review page for a better explaination of Z-CAV speeds - Incidentally, this is the review that convinced me to buy my Teac CD-W540E about a year ago.

http://www.cdrlabs.com/reviews/index.php?reviewid=115&page=Performance

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Postby cfitz on Wed Apr 09, 2003 4:25 pm

You have made a mistake, NightFlyer. The drive you bought uses Z-CLV, not Z-CAV. There is no such thing as Z-CAV. And all the new highest speed drives use CAV (or P-CAV when not writing at their highest speeds). Here is a good explanation of the differences:

http://www.cdspeed2000.com/go.php3?link ... al.html#q2

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Not possible.

Postby pranav81 on Sat Apr 19, 2003 7:27 am

It is impossible to burn on the fly at 40X because no reader will read data at 40X or more continuously.Though it may be possible to burn the CD at full speed for some time because the speed of the writer increases from one stage to another.
See ya guys later....

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Re: Not possible.

Postby cfitz on Sat Apr 19, 2003 11:10 am

pranav81 wrote:It is impossible to burn on the fly at 40X because no reader will read data at 40X or more continuously.

Not true. I can burn on the fly at 48x from my LiteOn LTD-166S to my LiteOn LTR-48246S, even with both drives on the same IDE channel. That's not the recommended configuration, but it works. The buffers all stay full (the LTR-48246S' "small" 2 MiByte buffer never drops below about 91%), there are no buffer underruns, and the total time is 2:51.

Of course, this is using good quality media for both the source and destination, so there is no slowing down to re-read bad sectors. And it is helped by the fact that Nero pre-fetches some data from the source drive into its own RAM buffer. So I guess one might argue that it isn't truly 48x on the fly recording but something more like 47x. But that is picking at nits.

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What is the average speed cfitz?

Postby pranav81 on Mon Apr 21, 2003 2:02 pm

Dear cfitz,
What is the average speed when you burn at 48X?I said the above sentence because the writer starts writing normally from 16X to 20X and then the speed goes on increasing to the max. speed.Because I have seen many readers that do read at speed of 52X,but the speed does not remain constant throughout.
You are lucky to have a reader that supports reading at 48X.
See ya later,

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Postby cfitz on Mon Apr 21, 2003 2:45 pm

It is 37x average, just like any 48x CAV burner. The same goes for the reader. Both devices are 48x CAV. There is nothing special about either.

You weren't thinking there was some question about a 40x CLV reader, were you? No one talks about 40x CLV reading, because it doesn't exist. And you wouldn't need a 40x CLV reader to burn on the fly at 40x anyway, since there is no such thing as 40x CLV burning either. It is well understood that when talking about 32x and up, either Z-CLV, P-CAV or CAV strategies are used.

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Thanks cfitz for the info.

Postby pranav81 on Tue Apr 22, 2003 1:21 am

Dear cfitz,
thanks for the info.
See ya later,

Pranav.
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Postby Dartman on Tue Apr 22, 2003 1:57 am

I also do on the fly copies with my 52x and my 166s. I have even done 2 at once before and it works most of the time, 3 at once is a bit too much ;)
Even going to the hard drive first, 3 is too much usually.
Nero seems to work very well on the fly, some of the others are more picky.
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Postby cfitz on Tue Apr 22, 2003 8:39 am

You're welcome, Pranav.

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UltraPlex 40Max

Postby clawsnoel on Fri Oct 17, 2003 7:43 am

Not sure why you are having trouble doing on-the-fly with your UltraPlex 40Max. This is a speedy reader indeed and you should never see buffer problems if you are only using a 40x burner since most 40x burners were programmed to use Z-CLV burning which produces speeds that the PX-40TS can easily keep up with. Incidentally, the PX-40TS is a great ripper. Ripping an 80 minute CD, the drive will actually exceed the 40x rating. I have seen it get up to 43x on occasion. I suppose overall it may be slower than some of the new 52x drives, but we are talking mere seconds at this point and the Plextor drives are much better in quality and construction than the others. Just beware of the new Plextor CD-ROM and DVD-ROM as they are NOT Plextor drives, only rebadges.
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