Possible Clues:

• "Par Avion" and "What Kate Did" from "Lost," e.g.: Abbr
• Some music releases
• Podcast installments, for short
• Pre-album samplers: abbr.
• 7-in. platters
• Installments of TV shows, for short
• Some indie releases
• Pre-album releases
• Pair from ''Glee'' that hit #1
• Some CDs