Currently Adobe Premiere Cs5 and Cs4 are widely used by us individual movies editor, from the official site of Adobe Premiere we can clearly see that Adobe claims to support:
-M2T (Sony HDV)
-M2TS (Blu-ray BDAV MPEG-2 Transport Stream, AVCHD)
But when comes the actual situation, we still meet these questions:
1."I am experiencing multiple jumpy & sometimes repeated frames during playback on rendered AVCHD files on Premiere Pro CS4. It's really hard to catch since it happens on multiple files and the jumpiness can be like a rewind or it skips frames. It only happened after I bought a new video camera."
2."I'm soon getting a Panasonic hdc-hs300 which uses the high quality avchd format. Will I be able to edit my videos (1080p, 17mbs) on my pc using adobe premiere pro cs5 without problems? Thanks in advance."
3."I've recently purchased an awesome new camcorder, the Panasonic HDC-TM700. Records in awesome HD video, AVCHD to be exact. Problem is, very few editing programs actually support this format. I actually purchased Adobe Premiere Pro, but it doesn't work."
-------------------From Yahoo Answer
What is the reason?
Sometime we will consider whether it's because our CPU or RAM question with the PC, indeed it's one of the reason. you can first try to improve you CPU or RAM. If still does nothing, it's because that when use Adobe Premiere Cs5 or Cs4, we should note that even high-powered computers struggle with AVCHD, so no matter what the machine is, transcending to something else first for Adobe Premiere is almost always a good idea when working with AVCHD. So the workable way can be convert AVCHD M2TS to Adobe easy handled DV or FLV format.
The solution to solve it:
You can use Doremisoft AVCHD M2TS to Adobe Premiere Converter Mac to easily do this, it enables you convert any M2TS from Canon, Panasonic, JVC, Sony to Adobe Premiere DV, FLV, 3GP, MOV, M4V etc. easy handled formats on PC so you can edit the converted M2TS files on Adobe Premiere without any jumpiness questions or worrying about PS configuration is not enough.
Step 1: Add M2TS to the AVCHD to Adobe Premiere Converter.
Step 2: Select Adobe DV or FLV format as output format.
Step 3: If you need you can lower the AVCHD resolution by its "Setting" option before you edit it on Adobe premiere.
Step 4: Press "Start" button to convert M2TS to Adobe Premiere best editing formats.