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Downloaded a bunch of books which were compressed in a .xdi file. How do I open/extract the internal data/files? I go to open, and Ubuntu does not recognize/nor is there a seemingly effective application..

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Do you mind providing a sample file in order to run a test? – Geppettvs D'Constanzo May 4 '12 at 23:56

XDI is a proprietary (closed-source) compressed format for ISO files (i.e disk images). You can't open/extract it directly on Ubuntu.

The format was developed and can only be created/opened/extracted with WinArchiver, and you can download a trial, 30-day version here. You may not need Windows though; try running it using Wine in Ubuntu.

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So there is no FOSS solution? :-( – hexafraction Jun 2 '12 at 19:59
@RobertArkenin: not unless you reverse engineer it and code one yourself :( – izx Jun 2 '12 at 20:02
Isn't that a little illegal? – hexafraction Jun 2 '12 at 20:03
@RobertArkenin, no, clean-room reverse engineering for compatibility is explicitly allowed, even under the DMCA. – izx Jun 2 '12 at 20:04
Oh, right. Sorry. – hexafraction Jun 2 '12 at 20:05

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