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dbminter

PTP and OTP

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Are all single layer discs Parallel Track Path and all double layer discs Opposite Track Path?  I don't think I've ever seen PTP applied to DL discs.

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All DL discs we buy are OTP, yes. Retails can be both, but not writable ones.

I don't suppose Track Path really applies to single layer ones as you're only walking over the disc in one direction anyway (inner to outer).

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I suppose PTP was only created as a designation once DL media, OTP, was invented to differentiate it from SL media.

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