- DVD got tree structure (like in your hard drives). There are three levels represented here (in fact 4 be we do not need it yet). The first level, the TITLES are movies correponding to a certain number of VOB files on the DVD. (VOB contains video audio and subpictures informations). For each TITLE VOB files got a number in common VTS_01_xx.VOB for exemple for the first title. Then each TITLE are divided in chapters that can be organised in different way. The Chapters are the third level. PCM (program chain map) is a way to organise and play those chapters. It's the second level. For exemple on a same TITLE there's somtimes the trailer of the movie corresponding to the first chapter and the movie organised from chapter 2 to the last chapter of the TITLE. Then there will be 2 PCM the first will be only the first chapter and second one all the others. *
- When you right click on a PCM you got several choices :
- Add Merging : this means you're going to add some part of the DVD but if it's for exemple a TITLE containing several PCMs they will be all merged (in the tree order)
- as new movie : all the DVD part will be merged in a new Movie
- as new chapter : all the selected DVD part will be append to the last Movie.
- Add Splitting : this means that you're going to add new movies and that the DVD part will be split in various movies using the DVD structure.
- by PCM : if you split a TITLE by PCM the new movies will correspond to each PCM of the TITLE.
- by Chapters : splitting a TITLE or a PCM by chapters will add as movies as there are chapters contained in the TITLE or the PCM.
Right TreeView : this represents the movies that you're about to encode.
- Each movie correspond to an AVI file. The movie are only made of chapters of the DVD. Right clicking on a movie or a chapter offers you several choice :
- Delete : with that item you can delete a chapter or a movie.
- Cropping : allow you to set up cropping using a special chapter or movie. (Remember cropping is general parameter (like resize) wich is applied to all movies )
- Resize : the same for the resize option.
- Listen to audio sample : you can check for exemple amplification of the stream wich is selected in the Audio Options in a custom chapter.
Megs , Kbps edit box and passes groupbox : these parameters are essentials.
- Megs and kbps : they're tied together, this is the relation Megs = (Time of the movie in second)*(kbps) / (8*1024). If you change kbps manually then it'll be stuck and if you change the movie time, the megs will change but not the kbps. On the other hand change the number of megs you want and the kbps will automatically be calculated. This is the way it's used most of times.
- Number of pass : this change the way to encode a movie.
- one pass ore one pass quality based : this a direct method to encode, the encoder got a constant kbps to respect, it can of course give a bit more or less of data for each scene but it'll bounded so if a part of movie realy need more datas to get a good quality, the result will not be very satisfying. Anyway sometimes it works well. See also the auto bitrate calculation (in Advanced to audio specs) wich is specific to one pass movies. Indeed you often get surprises with the final size of a movie using one pass method.
- two passes movies : This takes the double of time, but the result is always homogenic. Indeed with the first pass the encoder knows wich parts of the movies need more or less datas, then it can allocates what is exactly needed to get best average quality with a specified amount of datas.
Title, PCM, Cell, Length and LBA's edit boxes : theses gives you infos (such as length, LBA's wich are position in VOB files) about a selected item of the left tree view.
Movies and chapters edit boxes : infos about a selected item of the right tree view.
Clear all : clear the right tree-view.
Demuxer push button : run a demuxer wich allows you to extract any audio or subtitles streams of a DVD. You can also process sound DVD to MP3 conversion.
Start Encoding push button : run the DVD to AVI conversion.
Video, Audio , Misc and Codec push buttons : these are advanced options (see Advanced Video / Audio / Misc / Codec for details).
Cropping and resize push buttons : allows you to resize and crop an image (see Exemple / Video for details)
Streams push button : you can here select audio and subtitles streams you want to process and multiplex. (see Exemple / Audio for details )
Load / Save push buttons : save or load a movie configuration. Each time you run an encoding, all the parameters are saved in the file /save/last.mvs.