From Premiere, export via AME and choose the "H.264 Blu-ray" format, and then for preset, get what best matches your footage, for instance maybe 1080i 29.97
You will need to choose a bitrate in line with the length of the program so that you don't exceed the disc capacity. Just search the web for "bitrate calculator" and plug in your details. No need to be in the 30-40 range, something like 25 using H.264 will look fantastic. I believe at "20" you can fit well over 2 hours on a Blu-ray disc. Dolby audio is the default.
For DVD, again Export via AME but choose "MPEG-2 DVD" and proper preset like "NTSC Widescreen", and set bit rate. Don't exceed 7 or 8 on that, and you can use 560/minutes=rate as a rule of thumb and round down slightly. For instance 560/120=4.66 so I encode at 4.5, again using default Dolby Audio.
I'm not keen on sharing the same Encore project for the Blu-ray and DVD, but that's up to you. Note that you can add DVD chapter marks in your Premiere timeline and when you export, those go with. In Encore, use "Import As > Timeline" and grab the audio and video clip at the same time and the chapter marks come along for the ride!
Safe Harbor Computers
Thank You very much.YUou explained it so even I could understand it.Ity's a great help to me