Posted by David Chien on 03/30/06 22:54

It a downside to DVD recorders - you must erase a RW disc before writing
over pre-recorded information. It's not like a VCR where new recordings
go right over what was there w/o having to do anything besides press RECORD.

The main reason is because the DVD makers didn't invent a recordable
format that allows for this to be done easily to video that has been
recorded on the disc. As a result, we're stuck having to press ERASE
first before RECORD.

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