Yamaha CRW3200UX Series Owner's Manual - Technical Notes
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Technical Notes
CD-R/RW drives are equipped with a buffer memory, which temporarily stores
data that is being transferred. When the buffer memory becomes empty due to a
delay of data transfer for any reason, a writing error happens. Such condition is
defined as buffer underrun, and such an error is defined as a buffer underrun
error.
Buffer underrun protection is featured in the CRW3200UX drive.
When buffer underrun almost happens, buffer underrun protection temporarily
suspends the writing process. Writing resumes when enough data has
accumulated in the buffer memory.
Buffer Underrun Protection in the CRW3200UX drive is extremely accurate,
resulting in seamless recording before and after suspension.
Test writing
Test writing is a function to check for the possible occurrence of buffer underrun in
your computer environment. The CD writing software operates the test writing
function that cannot operate when buffer underrun protection is activated (default).
The buffer underrun protection should first be deactivated to use test writing.
Buffer Underrun Protection Function