My DMR-EX78EB went into a sulk last time I tried to format a DVD - wouldn't finish formatting,...
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My DMR-EX78EB went into a sulk last time I tried to format a DVD - wouldn't finish formatting, wouldn't release the disc. After a long wait, I ended up turning off the unit, and at some point later it finally ejected. However, it now seems stuck convinced it has a disc in (the indicator on the panel is on), and trying to put in any DVD results in a sequence of 5 buzzes (1 and then 3 mid-pitch, 1 lower pitch) followed by a message ''unable to read disc''. I've tried obvious things such as long power-downs and even a reset to factory settings, but can't make any impression on it. As far as I can tell the HDD functions are working fine.