"Double length" but "Double speed" DVD backup

I have a couple of PAL DVD backups (e.g. Spongebob Squarepants TV series, Dora the Explorer …) which show a duration of e.g. 3 hours (while in reality, it’s only 1:30 hours). Also the time stamp is progressing at double speed (2 seconds / real second). So the playback feels “normal”, but the time index is not.

I suspect these DVDs are multi-angle, but the “other” angle has been removed because that was causing stuttering in some scenes (like opening titles where they have French or English angle).

Anyone else experienced this?

Have you tried contacting WD’s Technical Support about this?

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