[r0lZ]

Previous versions of BD3D2MK3D (and BD3D2AVS as it was called at the beginning) used eac3to to demux the tracks, and for technical reasons it was necessary to use the SSIF files, except in very special cases, where the M2TS files were used. It was therefore necessary to copy on HDD a lot of files, including the M2TS (in BDMV/STREAM) and the SSIF files (in BDMV/STREAM/SSIF). Since the SSIF files are some kind of clones (or hard links) of the M2TS files but without physical data on BD, when they were copied, the result was that the content of the 3D movies was copied twice. It was therefore totally inefficient to copy a 3DBD as files on HDD, and much more rapid and economical to create an ISO. For that reason, it was recommended to use a mounted ISO, or the original BD decrypted on the fly by AnyDVD HD. And if you used a decrypter program that copies only the M2TS, BD3D2MK3D was unable to create the project due to the missing SSIFs.

In more recent versions, BD3D2MK3D uses tsMuxeR to demux the streams and tsMuxeR uses only the M2TS files. So, after a few modifications in my code, the necessity to have the SSIF files has been removed. The M2TS files are sufficient. It's why the copies released by MakeMKV work fine. Of course, a copy with any other decrypter should work equally well, even if the program ignores the 3D content and/or the SSIF files. However, I have recently fixed a bug causing BD3D2MK3D to fail when there was no SSIF on disc, and currently, due to that fix, BD3D2MK3D doesn't check any more if the free disc space is sufficient if it cannot find the SSIF files.

Conclusion: Yes, it is now possible to use a copy of the files on disc (with or without the SSIF files), but if the SSIF files are missing, be sure to verify yourself if there is sufficient disc space on the target drive, before launching the creation of the project and before launching the encoding.