Standard Definition: The DVD format will always be limited to standard definition (480p - NTSC, 576p - PAL) for it to work on set-top players. There is no way to get HD playback from a DVD.
Button Highlights: The DVD specification has limitations to how button highlights are displayed. To keep a consistent experience with the the other formats, the button highlight we use is a semi-transparent rectangle over the button text, giving the button colors a muted appearance when highlighted.
1 GB of Menu Content: DVD's also have a limit of 1 Gigabyte of menu data, which could occur if you use a long song for the menu music. When menu music is used, the menu background is rendered as a video for the duration of the music. This occurs for each menu page. So if you have a main menu and 9 pages of scene selections, along with a 10 minute song for the menu music, your disc would have 100 minutes of video just for the menu system causing it to go over the 1 GB limit. We recommend keeping the menu music to 30 seconds or less for optimal quality of the main video content.
Single-Layer Only: MediaZilla only creates single-layer images. Dual-layer discs are not supported. If you are concerned about image quality of a single-layer disc, you might be pleasantly surprised by the quality our studio encoder can achieve. If the duration is under 2 hours, there is no noticeable change in quality. The longer the duration is over 2 hours, the more likely you are to see some compression artifacts on complex fast-moving scenes.
5-Hour Duration: Although we use a studio quality encoder allowing for very good quality at low resolutions, we have a 5 hour limit for DVD content to prevent unacceptable quality discs from being created.
14-Hour Duration: We recommend keeping Blu-ray content under 14 hours on a single disc. At that duration, the video would be encoded at 3 mbps compared to the 5 mbps of the online HD streaming version.
Single-Layer Only: Just like our DVD format, we only support single-layer Blu-ray discs. We’ve found dual-layer discs create far too many complications, especially with finding recordable BD-R DL media that actually works reliably. Anything with a duration under 8.5 hours will look better than the online HD streaming version. Durations up to 2.25 hours are encoded at max quality.
28 Scene Limit: Our Blu-ray menu system utilizes multi-page pop-up menus, which get loaded into the temporary memory of the player. The temporary memory has a 16 MB limit per the Blu-ray specifications, which limits the number of our scene selection pages to 7 (28 scenes). Collections with more than 28 scenes will not currently build. If you have more than 28 scenes, you can either reference groups of scenes instead of each individual one, or you can break up the content over multiple collections to go on multiple discs. We will be supporting more buttons per page in the future which will increase this limit substantially.
Exact File Naming: The video files must use the same names specified during the build process, and the file that launches the menu (play.html) cannot be renamed or modified in any way or else it will not work.
No Autoplay: Due to security measures of operating systems, the USB cannot autoplay the menu upon insertion to a computer.