I work with attorneys who spend their days sifting through Blu-ray CDs. The slot prevents users from deforming the tray by inserting and removing discs. you hold up better. Version compartments break faster. Pioneer honors its warranty. They are in the process of overhauling two of their top loading Blu-ray burners. I had no problems at all with the slot burner. It's worth the extra money for durability.
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