MKV to AVCHD files too big

[acidsex]

Ok, i have many HD caps that I previously encoded to H.264 with AC3 muxed into MKV. However, in trying to create AVCHD discs to play back on my PS3 using TSmuxer, I have followed the steps specifically only to see that every single file I convert to AVCHD ends up being larger than the original encode which I targeted originally for DVD archival sizes. Is there a ton of overhead or something that I am missing that would add 100MB or so to each conversion? Surely the M2TS container doesnt require additional space over the MP4 or MKV container does it?

Any advice on how to do this without having to re-encode video or audio so that they will fit AVCHD discs?

[acidsex]

no one has idea or information on why this is happening?

[n0mag!c]

It has been discussed here already. Total size is container dependent. And there is nothing you can do without re-encoding with smaller bitrate or without cropping.

[acidsex]

Ok, is there a size I should be encoding to for DVD5 backups so that i can I plug that number into MeGUI so I can avoid the oversize problems in the future?

[n0mag!c]

Ok, is there a size I should be encoding to for DVD5 backups so that i can I plug that number into MeGUI so I can avoid the oversize problems in the future?
I personally reduce bitrate (or it may be desired total size) by about 3 percents.

[acidsex]

So there is no set number for file size if going to AVCHD then? I really appreciate your help on this. I wonder if we can get a file size preset for MeGUI for those going to AVCHD.

[n0mag!c]

So there is no set number for file size if going to AVCHD then? I really appreciate your help on this. I wonder if we can get a file size preset for MeGUI for those going to AVCHD.
File size difference is not constant. It depends of playback time. So we must use relative percentage.