CZroe
4th June 2007, 22:55
I've read varying bits of information about BDMV and BDAV before but I've never managed to get someone to actually explain it and what it means for us BD users. I've tried to engage people in conversation but never really gotten an answer. I guess that means taht it's time for a thread on the matter.
Please tell me if I have all this right:
From what I gather, all manufactured BD movies must contain AACS protection regardless of the movie's copyright status. This is then packaged and sold as a "BDMV" movie.
All self-authored content is made in the "BDAV" format.
I can only imagine that this differance is to create two fundamentally different formats so that a decrypted movie can't be simply thrown on a BD-R/E and played back with the same menus, bitrates, and interactive features. So, does that mean that the menus, bitrates, and interactive features of BDMV are not compliant with BDAV specs?
Is BDMV and/or BDAV limited to playback from BD media ONLY? I asked a similar question before I knew to suspect BDMV and BDAV issues, but I never got a response (http://forum.doom9.org/showthread.php?t=126229). What I was hoping to do was to split episodic BD25 discs onto four DVD9 discs while maintaining menus for the day that I can reauthor them onto a BD-R for cheaply.
To test if this is possible, I ripped a Spiderman 3 Bonus Disc from Best Buy (free with any BD purchase) because it was small and fits on a DVD. I used my Playstation 3 with Swiss Army Knife 1.0 to slap the image on a 500GB USB2.0 FAT32 drive and connected it to my PC with Nero Image Drive, AnyDVD HD, and PowerDVD Ultra. The image was not split due to the original disc being so small, so I changed the extention to ISO and loaded with Image Drive. It played in PowerDVD, though it was EXTREMELY slow. I then burned the contents to DVD with the BDMV folder on the root of the disc (I assume that this is where it goes... I couldn't browse the disc because I lack a UDF2.5 driver). When I pop it into my PS3, it shows as a data disc and I can only play back individual files that I browse too... therefore there are no menus. Expectedly, I also have no audio when they play back.
So, is a limitation of BDMV not being supported on other media? As opposed to BDMV, is BDAV supported on other media? If I threw that same BDMV rip onto a BD-R or BD-RE, would it play exactly as the original with menus or would it need to be in BDAV format even on a BD simply because it was burned and not manufactured?
I may be barking up the wrong tree entirely here, so please explain the whole BDMV vs. BDAV thing even if it's totally unrelated.
Please tell me if I have all this right:
From what I gather, all manufactured BD movies must contain AACS protection regardless of the movie's copyright status. This is then packaged and sold as a "BDMV" movie.
All self-authored content is made in the "BDAV" format.
I can only imagine that this differance is to create two fundamentally different formats so that a decrypted movie can't be simply thrown on a BD-R/E and played back with the same menus, bitrates, and interactive features. So, does that mean that the menus, bitrates, and interactive features of BDMV are not compliant with BDAV specs?
Is BDMV and/or BDAV limited to playback from BD media ONLY? I asked a similar question before I knew to suspect BDMV and BDAV issues, but I never got a response (http://forum.doom9.org/showthread.php?t=126229). What I was hoping to do was to split episodic BD25 discs onto four DVD9 discs while maintaining menus for the day that I can reauthor them onto a BD-R for cheaply.
To test if this is possible, I ripped a Spiderman 3 Bonus Disc from Best Buy (free with any BD purchase) because it was small and fits on a DVD. I used my Playstation 3 with Swiss Army Knife 1.0 to slap the image on a 500GB USB2.0 FAT32 drive and connected it to my PC with Nero Image Drive, AnyDVD HD, and PowerDVD Ultra. The image was not split due to the original disc being so small, so I changed the extention to ISO and loaded with Image Drive. It played in PowerDVD, though it was EXTREMELY slow. I then burned the contents to DVD with the BDMV folder on the root of the disc (I assume that this is where it goes... I couldn't browse the disc because I lack a UDF2.5 driver). When I pop it into my PS3, it shows as a data disc and I can only play back individual files that I browse too... therefore there are no menus. Expectedly, I also have no audio when they play back.
So, is a limitation of BDMV not being supported on other media? As opposed to BDMV, is BDAV supported on other media? If I threw that same BDMV rip onto a BD-R or BD-RE, would it play exactly as the original with menus or would it need to be in BDAV format even on a BD simply because it was burned and not manufactured?
I may be barking up the wrong tree entirely here, so please explain the whole BDMV vs. BDAV thing even if it's totally unrelated.