(7) The channel interleaving of MPEG files and multi-DOS files is once done for MPEG video streams.
After building the ISO11172 stream by multiplexing the audio and MPEG audio streams,
This ISO 11172 stream is used as a source file and a channel interface with a multi-DOS file again.
It can be realized by the so-called two-pass method that performs leave. 

 [Execution procedure] 
1) Multiplex the MPEG video stream and MPEG audio stream to obtain ISO 11172
Create script 1 that outputs the stream as a DOS file.
2) Run VCDBUILD using script 1.
3) Script to channel interleave the created ISO11172 stream and multi-DOS file
Create 2nd page.
4) Execute VCDBUILD using script 2. 

(8)   In the ISO file that describes the MpegMultiplex line, the SectorRate line   is always immediately after the File line.
  must be defined. 

(9) Specify any positive integer value between 1 and 65535 for the sector rate parameter defined in the SectorRate line.
It can be omitted. If omitted, it will be 150.
〈SectorRate line〉: == SectorRate <sector rate> [CR]   | SectorRate [CR]   

(10) The bit rate defined in the BitRate line is a number with a decimal point. Append .0 for integer values.
Yes. 

(11) AUDIO and MPEG_VIDEO are newly added to the file source type defined in the SourceType line.
Ta.
Record audio data other than ADPCM in the 2324 byte user data area of ​​the form 2 sector
If this is the case, describe the file source type as AUDIO.
When defining an MPEG video stream using the FileSource command, the file source type
Describe MPEG_VIDEO. According to this description, the file source is an MPEG video stream.
  immediately after   of sequence_end_code recorded at the end of the MPEG video stream
Add “0” data of 16 words. MPEG video stream normal in Sega Saturn
This description is necessary for playback. 

FileSource input file name
SourceType   MPEG_VIDEO  
EndFileSource 

Also, when defining an MPEG video stream using the MpegStream command, parameters
The same processing is performed by identifying VIDEO. 

MpegStream source file name VIDEO