img tools classic making different sized .iso files

[kisrum]

Used mpeg video wizard to create ~80 minute, 2.4 gb mpg from various Austin City Limits show captures. Used Tsunami DVD Author to make simple menu and create Audio_TS and Video_TS files. Video file was about 2.43 GB. Used ImgTools Classic to create .iso file and it came out to 5.0GB, too big for DVD.

Took the same Audio_TS and Video_TS files, ran them through DVD Shrink which indicated that they had no compression, and re-encoded everything at 100% and took the new Audio_TS and Video_TS file to imgtools classic which yielded 3.5 GB .iso file which, of course, fits the DVD fine, and incidentally is the size that Tsunami estimated for the dvd.

The odd thing is that the video_TS files created by Tsunami and dvdshrink are virtually the same size, 2.4 GB and yet imgtools classic did something very different with the two different files.

What am I missing here? Seems like I shouldn't have needed dvd shrink for this process. If I messed with audio settings I didn't realize it.

Thanks

[adam]

I've never used mpeg video wizard. Any chance it outputs files or folders into the same folder where the VIDEO_TS folder is located? If so imgtools classic would have included it in the iso. You could mount and view the iso to confirm, because loading it into DVD Shrink would just ignore that extra content so you'd never know. The iso seems to have come out roughly twice as big. If you accidentally included a temp directory, or some kind of working directory that mpeg video wizard used, that would be about right.

[kisrum]

In the spirit of posting solutions....
You are correct, adam. Mpeg video wizard didn't do anything wrong. I just saved the Audio_TS and Video_TS files to a directory that already had other files in it and imgtools went ahead and included it in the .iso file. I'm sure that's a noob error, but I guess I've never committed it before now.
Thanks