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Soooo, we have a couple educational VCDs from Taiwan. Upon insertion, they mount as 2 volumes, Audio CD and VIDEODISC. A quick Google said to browse to VIDEODISC/MPEGAV and play the DAT files there, which were essentially MPG files with extra (unspecified) data. But, on both discs every .DAT file has an i/o error. It's disc/OS interaction level - Finder won't copy the files, and a Disk Image creation failed (Error message: Invalid Argument), and Disk Utility kind of hangs at exit.

I don't know well the discs were taken care of, so I could see maybe one or two files that would have corruption, but not issues with every .DAT file (70+ files across 2 discs). They're Windows formatted volumes (the VIDEODISC volume has a Windows VCD player executable) but that never was an issue before. The fact that Disk Utility not only decides not to copy, but seems very confused in general.

Any tips?

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    Did you try to open them with VLC player, by Starting the VLC then open file? – Ruskes Jul 3 '15 at 16:04
  • @Buscar웃SD yes, but there's a core I/o error I mentioned. It can't even read the file much less decode and play – Rich Homolka Jul 3 '15 at 16:53
  • Sorry, are you saying you can not open that file in the VLC player? if so what error does it gives? – Ruskes Jul 3 '15 at 18:18

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