Device buffer

[dbminter]

I typoed Device bugger! 

 

 

Anyway, I was wondering the purpose of the Device buffer (I DID IT AGAIN!).  Was it added to address the problem of buffer (ACK!) underrun errors?  15 plus years ago when I first got into optical burning with CD-R, the majority of the problems were burns crapping out due to buffer underrun errors.  I don't think I've encountered such an error in over a decade. 

[LIGHTNING UK!]

It's the drive's internal cache.

 

Once the program sends the data to the drive, that's where it ends up. The drive then uses it when it's good and ready.

 

Before burnproof and similar technologies, cache size was important. Bigger cache meant less failures due to buffer underruns. Now, not so much... hence why it's been shrinking in recent years.