About compatibility: You could also actually verify whether your player supports CVD and/or SVCD subtitles. Download one or more of the test samples on and/or on . Burn them on a cdrw and you can tell yourself whether and what type of subtitles are supported. The user reports on vcdhelp are sometimes contradictory and confusing, especially when they talk about svcd subtitles (sometimes they mean subtitles when playing svcd, sometimes svcd style (or Philips) subtitles). Like this you can avoid a lot of frustation and waste of time. About resolution: It's not a matter of different resolutions, but of different standards. CVD and SVCD differ in resolution, not CVD style and SVCD style subtitles. About mixing: You can use CVD and SVCD style subtitles on SVCD. If your player supports it, you can even mix them on one disk (but you can not use dvd2svcd for this). I'm not sure about CVD disks. But of course: use what your player supports. coolejo About size: They are not to big. Let dvd2svcd take care of this. Up to now I didn't experience any problems with this. coolejo