Conversion to DVD can be done cheaply at $30 per hr because there are DVD set-top recorders readily available in the market that can instantly create the necessary menu pages with a few clicks of the remote. Blu-ray set-top recorders are not common in SG yet. But you'll find tons of them available in Japan.
Without a set-top Blu-ray recorder, the person who converts into Blu-ray discs for you will have to do Blu-ray authoring on a PC with a Blu-ray writer. There are ppe who can do this (I've produced wedding albums on Blu-ray since last yr), but the process is rather time consuming. You may have to pay more than $200 for just 1 hr of footage (a 25Gb Blu-ray disc now costs more than $15 locally).
Hope someone who owns a set-top Blu-ray recorder can help.