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Topic: Plextor and other drives limiting max. read speed (Read 6680 times) previous topic - next topic
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Plextor and other drives limiting max. read speed

My Plextor PX-760A seems to like to slow itself down to read many audio CDs. Many leave it at ~8x for Burst Mode and ~2.5x for Secure Mode. The maximum speed varies between discs and I sometimes need to go into Plextools and set it higher before ripping in order to use it.

However, it seems that I'm not alone; there follows information that I have retrieved from the forum. It does seem to make sense but, as I said, I'm just wondering how other users of recent Plextor drives get on.

Quote from: Never_Again on
Quote
Does anyone know what governs/limits (in totality) the read speed??? Hardware & software related?
[{POST_SNAPBACK}][/a]
Both. With Plextors, the max read speed is the determined upon the disc initialization (i.e. when you insert it and the drive scans it). There is software that claims to do the same (Nero CD/DVD Speed and CDBremse), but it will only work if the drive's firmware allows.

Quote from: JeanLuc on
Nearly every modern drive will check the CD's condition on the outer edge on disc insertion and set the max. ripping speed accordingly. This happens on brand-new and pristine discs, too (and even more often than you think because today's manufacturing quality or QC isn't that good).

And this link: [a href="http://www.plextor.com/english/support/faqs/HW00012.htm]http://www.plextor.com/english/support/faqs/HW00012.htm[/url]

So, I'm wondering to what extent users of other Plextor drives (especially the PX-760A), and any other drives that may be affected, have experienced this when ripping. Thanks!

Plextor and other drives limiting max. read speed

Reply #2 –
Well, if that is the case, then my LiteOn DVD burner does this all the time, and he doesn't like ANY audio Disc in my collection, be it older original, newer original, or a copy of the original on TY/MCC media.
I have Plextor at work, older 40x burner, and I didn't noticed slowing down like that when ripping.
TAPE LOADING ERROR

Plextor and other drives limiting max. read speed

Reply #3 –
Yes, this was the reason for me not using my Plextor PX-755A anymore and instead bought an LG GSA-4167B. This did happen on nearly all CDs and also the brand new ones and i'm certain that it dosen't work right, since when it suddently where giving full speed, then it was nearly always on very old and scratched discs. Also, IMHO it dosen't make sence to lock the speed for the entire disc, just because there are some errors at the outer edge of the disc. An intelligent drive should instead just slow down upon errors and then speed back up when errors are gone, and this is what my LG GSA-4167B does perfectly as opposed to the Plextor PX-755A. Every time there are error illumination of the red-boxes in EAC, the my LG speeds down and then at the exact time of where the error illuminations is stopping, then the drive speeds up to full speed again as opposed to the Plextor PX-755A, which would continue to rip the entire disc at 2.5x speed non-C2 or 3.5x with C2, and where the LG would rip at 20X - 30X speed, as it also dosen't cache audio(actually it caches 37KB, but EAC's limit is 64KB) and has accurate C2 pointer support.

Plextor and other drives limiting max. read speed

Reply #4 –
Quote from: Sebastian Mares on
Happens with every second CD with my PX-755A. My old PX-712A wasn't that strict. No problems with my PX-230A though, but it's not a real Plextor anyways.

I get the same thing. I think it may have something to do with CD-TEXT/UPC/EAN/ISRC codes being present, but i haven't done testing to confirm that.
Veni Vidi Vorbis.

Plextor and other drives limiting max. read speed

Reply #5 –
PX-716UF here, no such slowdown issues.
EAC>1)fb2k>LAME3.99 -V 0 --vbr-new>WMP12 2)MAC-Extra High

Plextor and other drives limiting max. read speed

Reply #6 –
Martin, I agree with you: this approach cannot be the optimal one. However, I am glad to have my concern alleviated, as I know now that I am not the only one experiencing this! I should be able to live with my PX-760A, but will keep my eyes open for competing/better drives.

Thank you all for your replies; any further related discussion is welcome!

Plextor and other drives limiting max. read speed

Reply #7 –
I've experienced this slow read with my plextor (712).  What was really frustrating was that once it slowed down on a disc, it would read all subsequent discs at that slow speed.

The way I get around it is to run plextools in the background.  After a disc has been read slow, I set the read speed to max via plextools.  Then I insert the next disc.  If the next disc is OK quality-wise, it will read at a higher speed.

Hope this helps.

Plextor and other drives limiting max. read speed

Reply #8 –
Thanks; I experience that too. The whole thing is a bit temperamental, and often seems random (although of course not ).

Plextor and other drives limiting max. read speed

Reply #9 –
Quote from: dv1989 on
My Plextor PX-760A seems to like to slow itself down to read many audio CDs. Many leave it at ~8x for Burst Mode and ~2.5x for Secure Mode.

I have the same drive and I'm dealing with the exact same thing in EAC. I've noticed however that one day the drive may rip a particular audio CD at that ridiculously slow speed for a "modern drive" while a few days later trying out the same audio CD again will rip at a normal faster speed.

The other problem I have with that drive is that is sometimes doesn't even recognize an audio CD, the disc will just spin for a long period of time before the drive finally gives up and stops wildly spinning it, and even the latest firmware version 1.06 doesn't fix that on a handful of audio CDs.

Just some of those ultra annoying things that makes me wish I had went with a Liteon drive at approximately 1/3 the cost.