Editing AVCHD material, even only simple trimming, will always result in recompression/generation loss. That is the nature of that material.
Thanks for your quick reply.
Would you suggest that I export to h264? Or is there a better codec?
The source is AVCHD 1080i @ either 24 or 25fps (I am not sure on the fps).
Assuming your intent is to deliver on BR, there are only two options, H.264-BR or MPEG2-BR. H.264 is more eficient with the compression but requires more time, especially with MRQ on. I would try two short clips and encode with both options and then weigh the quality and time consequences.
I will attempt them both, and will analyse screen shots.
In fact, the intent is to save the file for use on a PC as a HD file, with maximum possible quality.
In that case, install the Lagarith codec and export to that. Most any other option will involve some degree of generational loss.
The question is whether display on a computer screen, which is of lesser quality than a HDTV or professional monitor justifies the better quality with it's inherently larger footprint. A 23 GB H.264 encoded file encoded with the Lagarith codec may run somewhere to 75+ GB or even much higher. One wonders if that extra size and required disk performance is worth it on a computer display.
A valid question for any user.
But the request for highest quality was made. That means Lags (or something similar). The practicalities of such a choice will have to be evaluated on a case by case basis.
For example, if the files are to be used in future editing projects, or if they're to be projected on a large screen from a Laptop, or if they're to be used as source for future conversions to either Blu-ray or DVD, it may well be worth the extra overhead to retain full quality.
In the next 2-4 years I am pretty sure that general (even home use) computer monitors will be able to display 1920 x 1080 pixels. For this reason, or assumption (!), I am whoping to export my footage in the highest possible resolution, as I may still want to view it when I/ we are older.
I will install the codec, and compare the file size it generates with the quality of video.
ZipZoomFly currently has 19 computer monitors for sale sporting a native 1920 x 1080 resolution. By comparison, they have 21 choices with the more common 1680 x 1050 resolution (only 2 more), but also 13 with a higher than HD 1920 x 1200 resolution.
No need to wait 2-4 years.
No need to wait - I like that !
- This may sound like a stupid question to some, but will help others reading this thread .... How do I encode using Lagarith?
I downloaded and installed the codec.
When I go to my sequence in Premiere Pro CS4, I click File- Export, and then I get a very similar window to Media Encoder.
I cannot find the Lagarith setting in there? Have I not installed the codec correctly, or am I overlooking something?
Note: I installed the codec using it's own installer. I also copied the .dll file into the PPro and Media Encoder folders under "Plug ins".
It's under MS AVI.