You probably have mismatched versions of SQLite .. v2 and v3 are incompatible with each other, so if the media.vdb file was created by one but you're trying to read it (sqlite libraries, DBD::SQLite) with the other, you would get that message.

In reply to Re: DBD::SQLite::db prepare failed: file is encrypted or is not a database(26) at dbdimp.c line 269 at a.pl line 10. by davidrw
in thread DBD::SQLite::db prepare failed: file is encrypted or is not a database(26) at dbdimp.c line 269 at a.pl line 10. by chiragforever

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