Originally Posted by rekbones
Ripping any copy protected media is still considered against the law
It depends on the country. In my country (France), it is legal to make a personal copy of copyrighted material as long as you own the original physical medium (and keep the original after you have done the copy) and perform the copy with :
-your own medium (you can't download someone else's rip)
-yourself (you cant ask or hire someone else to do it for you)
-with your own copying hardware/software
-It's not a right it's an exception to copyright (you can't sue if the copyrighted material is protected with anti-copy stuff)
Check your copyright law in your country to know whether it's legal or not.
The thread title and text seem to indicate two different types of files.
-3D iso (disc image containing everything on the disc bit-for-bit, except the AACS encryption)
-Rips (re-encoded to 3840x1080 full-SBS for example)
For a 3D iso, you'll need the same software you use as with a physical BluRay (PowerDVD and co), If you have successfully removed the AACS encryption, you can also use Stereoscopic player to play individual files, however it won't play menus and tends to not like DTS-HD audio tracks.
For rips, you'll need a video player capable of playing your rips and calling your graphics card's 3D functions that manage the 1080p24 frame-packing mode. You can't set framepacking manually in the windows resolution menu, the video playback software must activate it for you. (other wise you'll be stuck in half-SBS) The only one I know it can do it for sure is Stereoscopic Player (which can use both Nvidia's 3Dvision/3DTV and AMD HD3D functions).