Panasonic 50P Using MP4 Format

[PhilipD]

I am looking at a new panasonic consumer camera. This: http://www.trustedreviews.com/panasonic-hdc-sd90_Camcorder_review_performance-and-verdict_Page-3
A Step up from my SD600 but ot says on the review that it does AVCHD for 50i but MP4 for 50p.

Do you know if you can keep the option of using AVCHD?

 

[GrahamH]

50p 1080 is not part of the formal AVCHD specification, so no it's not an option. Aside from the file structure, MP4 is essentially the same thing.

 

[PhilipD]

50p 1080 is not part of the formal AVCHD specification, so no it's not an option. Aside from the file structure, MP4 is essentially the same thing.

Interesting thanks for your reply does that mean that the SD600 that i already have and use at 50p is actually putting it into mp4 even though it says .MTS, if so then that review should be for every camera in their range regarding 50p.

 

[GrahamH]

AVCHD files use MPEG4 compression - i.e. AVCHD specifies certain framerates and compression levels that are a subset of the broader MPEG4 standard. MTS stands for mpeg transport stream, whereas mp4 is often a program stream - different repacking of the same audio and video data, readily converted from one to the other.

Also worth mentioning that 720P50 and 720p60 are within the AVCHD subset. Hope that helps. Lots more info here: http://en.wikipedia.org/wiki/AVCHD#Progressive-scan_video

 

[PhilipD]

AVCHD files use MPEG4 compression - i.e. AVCHD specifies certain framerates and compression levels that are a subset of the broader MPEG4 standard. MTS stands for mpeg transport stream, whereas mp4 is often a program stream - different repacking of the same audio and video data, readily converted from one to the other.

Also worth mentioning that 720P50 and 720p60 are within the AVCHD subset. Hope that helps. Lots more info here: http://en.wikipedia.org/wiki/AVCHD#Progressive-scan_video

Thanks very much Graham, now i understand it a bit more I'll have a read of that in a bit too