I have seen many questions concerning a problem with HD lite. This seems like a contradictory name for Hi Def recording.
High Definition format specifications are inter-corporate and international agreements. Officially High Definition includes the 1280x720 frame size, and up until last year the US was selling HDTVs with this max resolution and some broadcast networks were transmitting at this size. There is an AVCHD spec for files and disk images which only includes 50 or 60 progressive frames per second for 1280x720 depending on which side of the pond you live. Being progressive and 60 frames per second made this resolution display sports programming better than the 1080 interlaced frames format, (which has higher resolution, but temporally less fluidity).
Panasonic wanted to use the AVC encoding and the AVCHD spec for the camera archive, but their HD sensor only puts out a max of 30 progressive 1280 x 720 pixel frames per second. They either used or added a "doubled frames" flag, which says to the decoder "you can ignore every other frame in this stream". I have not been able to confirm if the doubled frames are actually encoded in the stream, or simply there virtually. Panasonic named this frame doubled format AVCHD-lite. It is high definition in that it is 1280 x 720 progressive, but "lite" in that it only contains 25 or 30 frames per second of recorded video in a 50 or 60 frames per second stream.
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Will you tell me if the device you are videoing with gives you ONLY this 1280x720 dimension choice? It sounds like this would give a very narrow rectangular view.
The TZ7 / ZS3 camera has a maximum video resolution of 1280 x 720 stored either as Motion JPEG or in the AVCHD lite format. (This resolution is a 16:9 aspect ratio which all HiDef televisions display full screen.) Motion JPEG compresses each frame but does not take advantage of frame to frame similarity, so recording time is greatly reduced in comparison to AVCHD.
AVCHD is currently considered the best quality for size compression algorithm, but it is very, very processor intensive.
(1280 x720 is not the only resolution choice I have, strictly speaking, the camera also does VGA and QVGA sizes in MJPEG, but my interest is only the HiDef resolution and I use the AVCHD-lite format to save space.)
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Did you buy the Apple Care warranty? it is worth its weight in gold! The best tech help system EVER - 24/7 help! for 3 years.
Yes, but I have so far only used the tech help to verify I had restored my system properly after wiping the disk out accidentally, and for the "yellow spotted 27" iMac display" issue. I also bought the "One to One" which I have not used yet.
Grammy, I'm hoping a long time Toast user will answer my question: (but almost certain Toast will solve this issue),
Q1) Can I create a camera archive when all I have are some .m2ts files?or the question can be:
Q1a) What is the best workflow to import "naked" 1280 x 720p AVCHD lite (frame doubled) .m2ts files to iMovie using Toast Pro?