Merely selecting it does not make it be used. Of course BUP is something different again, and yes if it's function is actually invoked, is to be avoided for a production master. There is no application that uses no buffer ( a buffer is 'protection', as well as essential component) which is why all but the most basic apps will have a bar-graph. Maybe this will help them solve the problem for other users. Please keep working with tech support, we will too.
Still, it is a very weird problem without a clear error message. So, we use the Pioneer DVR-111 for now since it is the only drive working properly without BUP enabled. Pioneer DVR-111, fw 1.06: everything perfectly fine WITHOUT BUP! Sony/NEC/OptiArc AD-5170A, fw 1.14: errors without BUP, writes fine with BUP enabled Sony/NEC/OptiArc AD-5170A, fw 1.13: errors without BUP, writes fine with BUP enabled We tried writing a particular project systematically to different drives, at different speeds, with different computers.
It has taken us a lot of time and effort to pin down the problem. We produce premasters on a daily basis, so thicking the box and praying it is not used is not an option for us. Good premasters should be written without any form of buffer underrun protection (BUP). No suggestions besides enabling buffer underrun protection so far from their side. All drives failing in CDA write perfectly fine audio-premasters with other writing-programs.Ĭurrently, we're in touch with Sony Support regarding this issue.
The problem is CDA handling the drive, the error regarding dirty media is invalid. We experience exactly the same problem with CDA.
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