^^^^^^^^^^^^^
Renaming doesn't exactly
make a dat an mpg, although they r one &
the same format.
Dat has additional data regd the VCD burnt too. Renaming doesn't remove them. This is the reason a dat file slightly larger than an mpg.
Also... dat is a universal format, enabling standard (read
old) vcd players to read the format. The VCD format stores MPEG files under the .dat extension.
Also dat is mpeg-1 format, the initial video and audio compression standard and includes the popular Layer 3 (MP3) audio compression format.
VCDGear is good for the above... Its a program designed to allow a user to extract MPEG streams from CD images, convert VCD files to MPEG,
correct MPEG errors, and more - all in a single step.
Other than Super, there's
VirtualDub, a free video capture and AVI/MPEG-1 processing utility.