Some know.how for DVD-Authoring...

MPEG2 is not the same as MPEG2.
Sometimes you may find MPEG files that fit on a CD despite the fact, that they contain the whole movie. These movies are encoded at very low bitrates (0.5 Mbit/s). Movies recorded from a DVB satellite receiver are normally encoded at 3-4Mbit/s and may end up at 8Mbit/s. Therefore only 20 minutes will fit on a CD. You may re-encode recordings, but video quality will be heavily compromised! Most satellite-recordings need 4Gbyte for a normal 90 minute movie.

Explanation about different MPEG formats:

MPEG-TS Format (MPEG-Transport Stream)
The streams which are recorded by our receiver, contain different data. These are video, maybe several audio tracks, videotext, subtitles, control packets and more. Our software does not change anything within these different data, but it buts the into the right order for DVD-authoring. Therefore there is no quality loss for video and audio, as they stay the same as the provider sent them and our software has no influence on them.

MPEG-PS Format (MPEG-Program Stream)
Do you use „Create MPEG File“ with DVR-Studio, these files are not suitable for DVD-authoring. DVDs using this material may result in stuttering video and audio. MPG-files are only intended for playback on a PC. Best results are achieved using WinDVD, PowerDVD and RealOne Player.
Reasons: Most software using MPG-files for DVD authoring always re-encode or render the streams. This leads to quality loss and may also result in audio out of synch to video. Also this process takes hours. Consider using other software.

MPEG-ES Format (MPEG-Elementary Streams)
If you want to author a DVD, we recommend to demultiplex your recording into MPEG-ES. On our Homepage you can find tutorials for DVD-Lab, IfoEdit and SpruceUp. They show step by step how to create DVDs. The whole process takes about 1 hour, including burning. Most of the time is waiting for your PC. The quality of your recordings will be the same on DVD as on your receiver.
These are the advantages if MPEG-ES over MPEG-PS:
- You can define labels and chapters so you can jump directly inside the movie.
- You can burn multiple recordings on one CD and add menus
- You can add multiple audio tracks to each movie, including AC3 DD5.1
- You can test your DVD on the PC.
- No re-encoding or rendering. Quality is unchanged.
- you can add menus, buttons etc.