Do remember that, if the source file is HD, Toast (or any other app that will be doing the authoring) will have to down-size the frame (because DVD is SD, not HD). Once the container is in a more compatible format, Toast may be happier (and faster). In many cases you may simply re-wrap the contents (if they are a compatible form such as H264/AAC) and that only takes a few minutes). I'm not going to claim this will solve your problem but it's worth trying: But if it works for you, that may be all you need. However, you would then not be assured of (near) universal playability. And the quality would have been fully retained. You could just as easily have chosen to burn them as a Data disc (onto either CD, DVD, or BD media), aka the 2nd type, and saved yourself the time & trouble. That required the application to re-encode them to get them compliant with DVD-Video's strict requirements. Your "MKV" files are of the 2nd type, and you probably (inadvertently?) chose to burn them as the 1st type. But, your compatibility varies greatly (usually better w/ newer devices) and only core features are guaranteed (menus, chapters, subs, multiple streams, interactivity, etc are much less supported). If it's the second type, none of that preparation has to be done beforehand. This adds steps, but ensures compatibility and allows for much more & varied features are supported. And then the burning has to be done in a certain way and with a certain strict order. If it's the first type, it has to be prepared to be compliant with a very strict subset of file/folder structure, container, codec, bitrate, and other settings FIRST. Authored media: AudioCD, VideoCD, DVD-Video, DVD-Audio, SACD, HD DVD, Blu-rayĢ. There are multiple ways of burning media to disc:ġ.
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