By PAL-M do you mean PAL-60? How is that better? Technically DVDs can only be in NTFS or PAL. SECAM might use a different frequency but it's still 25fps and 625 lines which makes it just like PAL. The way I understand it their TVs must automatically convert the PAL picture to their SECAM picture which wouldn't be hard since it's only the frequency that's different.

Here you are:

PAL 50 625 4.43MHz
SECAM 50 625 4.25/4.40MHz

And while we're on it, yes PAL-M is basically just the PAL version of NTSC:

NTSC 59.94 525 3.58MHz
PAL-M 59.94 525 3.58MHz

How is it a better PAL? It is for all intents and purposes NTSC!

PAL Advantages over NTSC:

* No 2:3 pulldown
* More lines of resolution
* More Luminance Bandwidth
* More Gamma Information (wider contrast)
* Stable Hues