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Which drives are caching audio data?
norton
post Sep 1 2004, 14:35
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EAC => What about the 'caching audio data'!?


I have read almost everything on this forum about this subject.

No doubt about it: If the Drive you are using to rip with EAC is caching audio data, the 'Drive caches audio data' Box (Drive options... / Extraction method) have to be checked (ticked).

But how can you know if your Drive is caching audio data?

Of what I have read on this forum, you should run 'Detect Read Features' (Drive options... / Extraction method / Detect Read Features). If the result is: Caching: No => You're OK! If the result is: Caching: Yes => You have to checked the 'Drive caches audio data' Box.

Well... The problem is, many people are saying that the 'Detect Read Features' is NOT accurate!!! (How do they know that??) That means even if you perform 'Detect Read Features', you are still not sure if your Drive is caching audio data, or not.


MY QUESTION IS: How can I know if my Drive is Caching audio data, or not?


Thanks for helping,


norton

This post has been edited by norton: Sep 1 2004, 16:21
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VolMax
post Sep 2 2004, 15:54
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QUOTE
Your results are interesting, but they are all about quality, not secureness.

What is secureness? Capability of producing CONSTANT good results? Error-free? Yes, a some bug in firmware (in C2 reporting, in error correction, etc.) could result problems (unnoticed errors in stream). But i tested on one normal CD, result was bit-identical. Better results on scratched CDs and possibly not very bad on normal was sufficient for me... But sacrifacing good drive for cache override...
Do you think that this particular drive will perfom better if cache will be removed from firmware? It will break burst mode perfomance (now im not so scared to use even cdex in burst mode!). It will probably produce errors in stream if there is not enough CPU resources...

Cache is not really bad feature, but it is good only with correct firmware and good error correction... It will be better IMHO if drive have big cache and reread bad sectors internally... Dreams... sad.gif

Do the situation with ASUS better? It could be used only with grabbers supporting ForbidReducingSpeed feature... And speed will be ~4x.

I do not even talk about NEC.

Even if drive (say MEC) could report with 100% probability that it COULD NOT CORRECT error somewhere what is good for? Rereading will result same error msg. With TEAC i most probably cannot be sure what CD was ripped without errors, but i could be sure i will get much more errors using that 100%C00l MEC drive...


QUOTE
I get glitches in the wave files that it produces.

Whoops! Was this particular or usual situation? My drive could suffer from same probl... How you detected that?


QUOTE
I was the only one to have tested it properly, but it didn't work on my drive

Enabling this feature decreased quantity of errors not more than 10%
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Never_Again
post Sep 2 2004, 16:50
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QUOTE (VolMax @ Sep 2 2004, 10:54 AM)
What is secureness?


Extraction errors reporting.

QUOTE
It will be better IMHO if drive have big cache and reread bad sectors internally... Dreams... sad.gif


This makes no sense. If a drive reads the sectors correctly the first time, there is no need to re-read. If it doesn't, no amount of re-reading from the cache will help.

If interpolation is what you meant, have a look at the Plextor Premium. It does that in PlexTools Pro, though I don't know if its 8MB of cache has anything to do with that.

edit:
P.S. VolMax and Pio: what feature are you two talking about?


This post has been edited by Never_Again: Sep 2 2004, 16:50
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Posts in this topic
- norton   Which drives are caching audio data?   Sep 1 2004, 14:35
- - Pio2001   The EAC detection feature is not accurate because ...   Sep 1 2004, 18:49
|- - liekloo   QUOTE (Pio2001 @ Sep 1 2004, 06:49 PM)Uncheck...   Oct 17 2004, 18:39
|- - Pio2001   QUOTE (liekloo @ Oct 17 2004, 07:39 PM)the re...   Oct 23 2004, 03:02
|- - rutra80   QUOTE (Pio2001 @ Oct 23 2004, 04:02 AM)It is ...   Oct 23 2004, 04:57
- - markanini   Pio2001, that's the best explaination I've...   Sep 1 2004, 18:59
- - norton   QUOTE To know if your drive caches : Ask EAC. If i...   Sep 1 2004, 22:04
|- - Pio2001   QUOTE (norton @ Sep 1 2004, 11:04 PM)I was wo...   Sep 1 2004, 23:06
|- - minix   QUOTE (norton @ Sep 1 2004, 11:04 PM)I was wo...   Sep 2 2004, 23:53
- - norton   Well... I QUIT!! I have spent the last 1...   Sep 1 2004, 23:00
- - dreamliner77   QUOTE (norton @ Sep 1 2004, 06:00 PM)Well......   Sep 2 2004, 00:03
|- - mai9   QUOTE (dreamliner77 @ Sep 2 2004, 12:03 AM)I...   Oct 24 2004, 01:51
- - norton   QUOTE I'd say be safe and just check "dri...   Sep 2 2004, 00:32
- - kwanbis   just listen to them ... or a random sample   Sep 2 2004, 03:20
- - norton   QUOTE just listen to them ... or a random sample ...   Sep 2 2004, 03:48
- - VolMax   Caching or not, it doesnt matter for me now. The ...   Sep 2 2004, 05:26
|- - Pio2001   Your results are interesting, but they are all abo...   Sep 2 2004, 12:05
- - VolMax   QUOTE Your results are interesting, but they are a...   Sep 2 2004, 15:54
|- - Never_Again   QUOTE (VolMax @ Sep 2 2004, 10:54 AM)What is ...   Sep 2 2004, 16:50
- - norton   About ASUS CD-S520/A4... On the ASUS website, in ...   Sep 2 2004, 16:07
- - norton   QUOTE Make sure DMA is enabled for your drive. Feu...   Sep 3 2004, 01:31
- - VolMax   QUOTE VolMax and Pio: what feature are you two tal...   Sep 3 2004, 04:58
|- - Never_Again   QUOTE (VolMax @ Sep 2 2004, 11:58 PM)Drive co...   Oct 19 2004, 08:34
- - Pio2001   No, the audio cache can be smaller than the data c...   Oct 24 2004, 00:11
|- - rutra80   QUOTE (Pio2001 @ Oct 24 2004, 01:11 AM)No, th...   Oct 24 2004, 05:17
|- - Triza   QUOTE (rutra80 @ Oct 23 2004, 08:17 PM)QUOTE ...   Oct 24 2004, 09:09
- - rutra80   If there is a 100% reliable method to determine ho...   Oct 26 2004, 10:48


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