Dear Beta Testers,
Thank you for participating in our initial trial. Your experiments will help the MD community understand the compatibility issues involved with oversize MD blanks. The Miyadisc86 beta discs are slightly different from our intended production version. The beta discs are "full", having 3 tracks that occupy the entire 86m28s of contiguous recordable area that exists on a normal 80m59s disc. The first track is 1:23 and corresponds to the reserved (but recordable) area between the UTOC and the main recording area. The second track is 80:59 and corresponds to the normal recording area of an 80 minute disc. The third track is 4:05 and corresponds to the recordable area beyond the leadout. This last track also contains audio data (Bob Marley - "Waiting in Vain", duration: 4:05). Tracks 1 and 2 contain no audio data and attempting to play them will usually cause a unit to do many read retries, and the time will advance very slowly.
We ask that you complete the first 2 tests and optionally the third with these discs. They are as follows:
When you complete the tests please send us the results, afterwards you are free to use the disc as you like. On Sony equipment, deleting the tracks usually results in the extra space being lost forever. On Sharp equipment (at least on the MD-MS702), as long as ALL ERASE is not used, the disc behaves more or less as if it were a normal disc with 86m28s free space on it. Using ALL ERASE on any machine will most likely return the disc to 80m59s.
Again, thank you for participating in these experiments.
The Staff at Miyadisc
Notice: Miyadisc provides these 86 minute test discs on an as-is basis, for experimentation and testing purposes, with no claim of fitness whatsoever. The test discs contain a UTOC (User Table of Contents) that is not in conformance with the MiniDisc specification. You assume all risk in using them in your equipment.
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