help!!!

[gamex]

hi, i just wanna know what is the diference about pal and ntsc.
also, i wanna know what are they for.

another thing is, how can i put 3 or 4 games in the same cd. i know that the original game must have a .EXE. i buy a cd that has street figther alpha 3, king of figther 98, ergheiz, and tekken3.

i was looking for the .EXE in the originals cd that i mentioned, but there were not.

im very confused. please if someone knows how to make .EXE for games that dont have, please send me an email.

thanx for your time