Recording Methods

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When a recorder writes data to a disc, it must receive a constant stream of data from your computer. CD-R and DVD-R devices contain a physical memory buffer internally to temporarily store your data after it has been transferred from a computer, but before it has been recorded to disc. The buffer is a queue where your data remains available for recording so it can be written continuously. If at any point during the recording process the data buffer of your recording device is empty, it will produce a buffer underrun error. A buffer underrun error will immediately terminate the recording process and usually results in an unusable disc.

IMPORTANT: The data transfer rate is one of the most important (and most problematic) variables in recording CD/DVDs, should you encounter this error during a recording session please consult the later section in this manual specifically concerning improving system performance to minimize the likelihood of buffer underruns.

There are certain recording methods where you are able to stop the transfer of data to the recorder - but this occurs at specific points only. These points are determined by the method being used to create the disc (i.e: disc-atonce, track-at-once, or incremental write). Only at the following points: End of disc, end of track, or end of packet can the recorder finalize the written data allowing you to resume writing at a later time.

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