Buffer underrun

Question: I am experiencing Buffer underruns. Under which conditions can these occur?

Answer: There are various possible causes:

• Your read device is transferring the data too slowly.
• Your SCSI interface is transferring the data too slowly to your write device.
• Your read device has "hung up" and is no longer transferring data.
• Your write device has "hung up" and is no longer collecting data.
• Another device is blocking the SCSI bus for a few seconds, in which time the internal buffer of your burner empties.
• The chunks that you are using are either too large or too small. A chunk should be no larger than half the buffer size of your CD burner. 50 KB seems to work well.
• Another program using Forbid() or with a higher priority is taking over the processor for a number of seconds. Some customers have reported that changing the screen with some graphics cards can contribute to a buffer underrun.

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