I beleive it is the MPEG-4 format, and when you "Create Disc" PD9 creates the necessary file structure, just make sure you select Blu ray from the right output. Also you have to have the PD ultra version to produce Blu rays. I usually create to folder, and use this to preview before burning to make sure it works as I want, then use an external program for the actual burn process.
JIm Intel i7-2600@3.4Gz Geforce 560ti-1GB Graphic accelerator, windows 7 Premium 12GB memory

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H.264 AVC. You would use the 1920x1080 format, but you could also use the 1080p format if you like. __________________________________
CORNBLOSSOM

Thanks guys. Now is there anybody out there with a tie-breaking opinion? The overriding factor is highest quality output. HP Pavilion Elite 410f. AMD Phenom II 1045T (six core), ATI Radeon HD 5570 Graphics Card w/1GB, 8GB memory, terabyte HD, generic multi optical, LG BD burner, both Lightscribe, Windows 7 Home Premium 64 bit. Formerly used Ulead/Corel VideoStudio.

Mpeg-4 is H.264 file format just different exptension Intel i7-2600@3.4Gz Geforce 560ti-1GB Graphic accelerator, windows 7 Premium 12GB memory

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You did not indicate what type of disc you intend to burn. Because your video is AVCHD (h264) from your camera I assume then that you will be burning to a standard DVD disc.

The highest quality that you can achieve is that of the camera = AVCHD 1920x1080 = h264 at 1080i = your camera's format. Win 10, i7

I just produced the project as mpeg-4. Earlier I had done the same project as AVCHD (to burn to a standard DVD before I got my bd burner). My monitor isn't the greatest so I can't rely on a visual comparison. However the Mpeg-4 is significantly smaller than the AVCHD file, 1.2 gigs vs 1.6 gigs. Assuming a larger file is better quality (I realize that may be wrong) and that the project is so short, I'd like to maximize quality.

Sorry to be so anal about this but I want to get it right before I commit to burn, given that 3 bd-r discs just cost me $14. HP Pavilion Elite 410f. AMD Phenom II 1045T (six core), ATI Radeon HD 5570 Graphics Card w/1GB, 8GB memory, terabyte HD, generic multi optical, LG BD burner, both Lightscribe, Windows 7 Home Premium 64 bit. Formerly used Ulead/Corel VideoStudio.

OK. A bit of info for you:

- The AVCHD project is the BEST that you can attain because of your camera. So it's best to stick to AVCHD.
- AVCHD videos were designed to be burned to a standard DVD (4.5 Gb = approx. 45 minutes of HD video) originally for camcorders. You can also burn them to BD but it is NOT necessary. The AVCHD DVD disc is playable only on a BD player and it will pleasantly surprise you in it's quality. The other great part about AVCHD is that you can use re-writable DVD's to allow you to "work out the bugs" in your production. Win 10, i7

What I have been doing as my monitor is 24" Viewsonic Led and when viewing my creations on it they aren't as crips as expected so I invested in a Dlu ray RE disk and durn to that and check the quality in my DVD player using the Rewritable disk (panasonic BD player), then make any adjustments before commiiting to a final disk.
The cost of the Re-wrtiable Bllu ray saves a lot of coasters.
JIm Intel i7-2600@3.4Gz Geforce 560ti-1GB Graphic accelerator, windows 7 Premium 12GB memory

Visit GranPapa64's channel for your YouTube experience of the day!

Burning to a BluRay Folder saves those expensive disks until you get a good burn folder.

Once you have the BluRay Folder, you can use 3rd party disk burning software to write the BluRay Disk.

If you don't have the burn folder option check the stickies at the top of the forum for instruction on activation. Carl312: Windows 10 64-bit 8 GB RAM,AMD Phenom II X4 965 3.4 GHz,ATI Radeon HD 5770 1GB,240GB SSD,two 1TB HDs.

Quote: Mpeg-4 is H.264 file format just different exptension

Not exactly. H.264 is a variation of MPEG-4, but not all MPEG-4 is H.264 . It's like the exercises we used to do in school. All apples are fruit, but not all fruit is apples. __________________________________
CORNBLOSSOM

I'm going to stop torturing myself and just go directly to "Create Disc" and select the standard Blu-ray profile.

Carl, I'm curious why you referenced third party blu-ray burning software. Is there a reason not to use PD9 to create the disc? HP Pavilion Elite 410f. AMD Phenom II 1045T (six core), ATI Radeon HD 5570 Graphics Card w/1GB, 8GB memory, terabyte HD, generic multi optical, LG BD burner, both Lightscribe, Windows 7 Home Premium 64 bit. Formerly used Ulead/Corel VideoStudio.

He means to use create disc, but burn to a folder instead of a disc. then use disc burning software to burn the folder that PD creates to actually make the disc. If there is an error, you have not wasted a disc, but once the BD folder is created, PD will not burn it to disc. Therefore, third party software. __________________________________
CORNBLOSSOM

Good answer, Jaime-esque.

That is exactly what I meant. Carl312: Windows 10 64-bit 8 GB RAM,AMD Phenom II X4 965 3.4 GHz,ATI Radeon HD 5770 1GB,240GB SSD,two 1TB HDs.