Should I use Constant Frame Rate encoding?

[Downgraded286]

It seems I may have to go back and re-do the DVDRips I already did. I play them on my PS3 via Plex, and sometimes the audio and video don't quite line up. It always seems to happen on the same episodes. I've been using VFR this whole time, and on problem episodes Mediainfo tells me the framerate can vary greatly, with the minimum framerate being sub 1 fps. If I go back and re-encode an episode such as this and instead use CFR, the problem seems to go away. The problem videos play fine on my PC, however.

Should I start using CFR, or could something else be going on?

[Cornucopia]

IMO there is only one questionably good reason for using VFR and that is shooting phone cam footage in low light.
ALL other encodes should be CFR or you will be doing yourself and others a disservice and will truly regret it if you ever want to re-edit/composite/compile/convert it. I cannot stress this enough!

Btw, all commercial DVD/BD are encoded as either 25 or 29.97fps CFR (with or without pulldown flags), so it doesn't seem sensible to create a vfr conversion from it, even though plenty do this.

Scott

[Downgraded286]

Nice, pretty cut and dry there. I thought the same thing about commercial dvd/bd being CFR. It wouldn't make much sense to change this.

Now, do I gotta go back and re-rip all of this, or can I just run it through Handbrake again and set CFR this time?

[Cornucopia]

Running through handbrake = re-encoding = further quality loss.

[Downgraded286]

I know, but I was mainly wondering if it would remedy the AV out of sync issue. A quick test seems to show that it does...

[manono]

If your audio is out-of-synch all the way through by the same amount, you can just remux with a delay set. No reencoding needed. Although creating VFR video from a constant framerate source is pretty stupid, that blame should properly fall on Handbrake for making it the default behavior in the first place.