Vista - DVD Maker disk compatibility?

How compatible are people finding the DVDs they create are with other
playback devices?

First one I made played fine under Vista, fine with my Liteon (DVD
Recorder/Player) but didn't work on my LG (mainly used as a 5.1 amp nowadays)
and didn't work on Playstation 2.

As a point of note, I went into the menu on the Liteon, and it gave me the
option to finalise the DVD - I thought this was potentially a reason why
playback on the PS2 might not be great so decided to try it. Now, that DVD
plays on the Liteon (and the LG!), but not the PS2 *or* the PC is was
originally created on.

Any tips?