This my method of playing blu ray backups in folder form(not iso's or any other disc image) with an external program
-blu ray backups have a file similar to a dvd's ifo called "index.bdmv"
at this point in time(14.0.140) J river cannot import or play these.
As a work around do the following:
1)in your bluray backup folder create a text file. Call it anything for now
it will sit beside BDMV folder and CERTIFICATE folder
this is also where folder.jpg will sit
2)Change the text file's name to whatever you want. lets say the movie title
3)change the extension from txt to swf
leave the foder.jpg, BDMV folder, and CERTIFICATE folder sitting beside it
5)import the swf into j river and tag it just like any other video
then
You can use an external program to open index.bdmv by the following:
1)go to [options]/[filetypes]
2)set swf(shockwave) video to open with external program (custom)
3)select the program you want to use
4)paste this, quotes included, in the arguments box: "[Filename (path)]BDMV\index.bdmv"
it should play just as if you had the disc inserted
note that you can substitute swf for any unused video format you want.
i have only done this with arcsoft total media theatre, so im unsure if other blu ray software can play blu ray backups.
Also, im not sure if all blu ray folders are structured the same, so far all of mine are
if some are different this will have to be modified/expanded
if you have iso's or img's you can convert them to a folder by unzipping them with archiving software
i have only tried winrar but others probably work too