Can you dump the PIC data for your recent BD-Video discs? The layer break is automatically calculated from it.
I guess "Category: Video" is okay for these discs. "Category: Applications" would be good for the Netflix Instant Streaming Disc.
Worth mentioning: for PS2 systems that are just Video Demos (standard DVDs), if they have a PS2 serial number on them (SCUS/SLUS) ack has been adding them to the PS2 category as "Video Demos".
One way or another maybe this system of naming should be consistant across all playstation systems.