"Drive caches audio data" option in EAC

null@example.com (ssjkakaroto) — Fri, 04 Jan 2008 22:33:20 +0000

I noticed that in a lot of EAC logs posted here this option was disabled so I decided to verify if my drives really needed it on.
According to Hydrogenaudio's wiki (http://wiki.hydrogenaudio.org/index.php … ve_Options) EAC's caching detection is not reliable so I used cache explorer (http://club.cdfreaks.com/showthread.php?t=184487).
Here are my results:

K:\dumps>cachex.exe -i -c -s 0 -l 10 -r 0xd8 q:

CacheExplorer 0.8 - spath@cdfreaks.com

Drive on Q is  PLEXTOR  CD-R   PX-W2410A 1.04

[+] Buffer size: 4096 kB, read cache is enabled
[+] Supported read commands: BEh D8h
[+] Testing cache line size:
 1169 kB / 509 sectors
 1169 kB / 509 sectors
 1169 kB / 509 sectors
 1169 kB / 509 sectors
 1169 kB / 509 sectors
 1169 kB / 509 sectors
 1169 kB / 509 sectors
 1169 kB / 509 sectors
 1169 kB / 509 sectors
 1169 kB / 509 sectors

K:\dumps>cachex.exe -i -c -s 0 -l 10 p:

CacheExplorer 0.8 - spath@cdfreaks.com

Drive on P is  _NEC     DVD_RW ND-3540A  1.WB

[+] Buffer size: 2048 kB, read cache is enabled
[+] Supported read commands: BEh
[+] Testing cache line size:
 27 kB / 12 sectors
 no cache detected
 128 kB / 56 sectors
 516 kB / 225 sectors
 583 kB / 254 sectors
 57 kB / 25 sectors
 1029 kB / 448 sectors
 275 kB / 120 sectors
 25 kB / 11 sectors
 133 kB / 58 sectors

K:\dumps>cachex.exe -i -c -s 0 -l 10 o:

CacheExplorer 0.8 - spath@cdfreaks.com

Drive on O is  HL-DT-ST RW/DVD GCC-4521B 1.07

[+] Buffer size: 2048 kB, read cache is enabled
[+] Supported read commands: BEh
[+] Testing cache line size:
 no cache detected
 no cache detected
 no cache detected
 no cache detected
 no cache detected
 no cache detected
 no cache detected
 no cache detected
 no cache detected
 no cache detected

Since two of my drives cache more than 64kB ("EAC will never request less than this amount while ripping") the option should indeed be ON for them.

I think this information should be in the guide since it could result in false good dumps.

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"Drive caches audio data" option in EAC