Open question.

Has anybody tried burning a Blu-Ray using CS5 Encore from a timeline that includes native AVCHD (presumably H.264/AVC) of native 1920 x 1080 60p files from the Panasonic HS or TM700 camera?

A blurb on the Adobe site states "Publish content from AVCHD cameras to Blu-ray using the high-quality native camera format. By passing AVCHD content directly to disc without transcoding, Encore preserves the original fidelity of the source content."

Does this allow editing and effects? I have taken these native file into a CS4 Premere timeline and they do show up with the correct identification. But of course CS4 Encore could not output the native format only a transcoded MPEG of 1920 x 1080 60i.

BR does not allow 1080 60P. It is not in the specs, so you need to encode to a supported format.

Bluray will not do 60p in 1080 but it will in 1280x720.

I second the responses. Blu-ray does not support 1080/60p at all. The only modes allowed by Blu-ray for 1080 are 1080/23.976p, 1080/50i and 1080/59.94i. If you want a framerate of 59.94p, you will have to downconvert 1920x1080 footage to 1280x720 before Blu-ray will accept the footage.

A blurb on the Adobe site states "Publish content from AVCHD cameras to Blu-ray using the high-quality native camera format. By passing AVCHD content directly to disc without transcoding, Encore preserves the original fidelity of the source content."

Encore CS5 - at least the initial release, which is still current as of 12 June 2010 - will always (re-)transcode 1920 x 1080 AVC content edited through Premiere CS5 or encoded with Adobe Media Encoder CS5 regardless of the source's frame rate or bitrate. The only way to avoid such transcoding is if you create and encode the AVC using a non-Adobe program or if you downconvert the 1920 x 1080 footage (1:1 PAR) to 1440 x 1080 with a 1.33:1 PAR.