While "008" could represent an episode or segment number in a fan collection, it is most likely associated with official or promotional material for the following:

New info for the SAILOR MOON Shining Theater Shinagawa Tokyo!

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[shining Moon] Bishoujo Senshi: Sailor Moon 008.mp4

While "008" could represent an episode or segment number in a fan collection, it is most likely associated with official or promotional material for the following:

New info for the SAILOR MOON Shining Theater Shinagawa Tokyo! [Shining Moon] Bishoujo Senshi Sailor Moon 008.mp4