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Toshiba SD-M1712 - what is the size of its buffer ?

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Toshiba SD-M1712 - what is the size of its buffer ?

Postby dodecahedron on Tue Mar 30, 2004 8:02 am

what the buffer size of the Toshiba SD-M1712?

shoptoshiba.com says: 192Kb.
toshiba.com says: 192Kb.

on my drive, Nero InfoTool says: 128Kb.

wtf?

p.s. firmware J004 btw.
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Postby Raz0rX on Tue Mar 30, 2004 11:22 pm

I am just making an assumption here: maybe there's a small bug in the drive's firmware that is not allowing programs to retrieve the buffer size.
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Postby dodecahedron on Wed Mar 31, 2004 1:42 am

could be.
that's why i'm asking this question.
anyone else with this drive? check your InfoTool.

the J004 firmware is hacked, BTW.
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Postby Han on Thu Apr 01, 2004 7:30 am

Why bother? It works just like SD-M1612 with 512 KB buffer... :wink:
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Postby dodecahedron on Fri Apr 02, 2004 6:31 am

how do you know it works the same ?
maybe the 1612 performs better ?

anyway, what does the buffer size matter in a DVD-ROM ? how does it affect performance ?
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Postby Han on Fri Apr 02, 2004 9:53 am

dodecahedron wrote:how do you know it works the same ?

I have both drives. :wink:

dodecahedron wrote:maybe the 1612 performs better ?

Maybe, maybe not. It's not all about buffer size - drive's firmware and chipset has to know how to use it efficiently...

dodecahedron wrote:anyway, what does the buffer size matter in a DVD-ROM ? how does it affect performance ?

...just like hard drive's buffer. If you frequently access the same files, larger buffer size is favourable. If you're only transferring files from one place to anther, buffer size doesn't matter that much. Threrfore, 128 KB buffer is enough for "smart" DVD-ROM drives. And Toshiba SD-M1712 sure is one of them. :D
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Postby dodecahedron on Fri Apr 02, 2004 12:05 pm

Han wrote:
dodecahedron wrote:how do you know it works the same ?

I have both drives. :wink:

good answer!


Han wrote:
dodecahedron wrote:maybe the 1612 performs better ?

Maybe, maybe not. It's not all about buffer size - drive's firmware and chipset has to know how to use it efficiently...

absolutely right, and i knew this of course. :wink:


Han wrote:...just like hard drive's buffer. If you frequently access the same files, larger buffer size is favourable. If you're only transferring files from one place to anther, buffer size doesn't matter that much. Threrfore, 128 KB buffer is enough for "smart" DVD-ROM drives.

that i didn't know. thanks :)


Han wrote:And Toshiba SD-M1712 sure is one of them. :D

great! :D :D :D
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