Encrypted SFDs (CRIWARE) by punk7890-2 at 8:06 AM EDT on September 2, 2018
I found these encrypted SFD files in Sakura Wars: So Long, My Love (these are from the Japanese version, although they should be the same in the USA version) and I don't know of any tools to decrypt them. Here's some info that I know about them:
*A password is needed for decryption. Said password is "hantosikurai" without the quotes.
*The correct decrypted header for the movie file "MV0000.SFC" can be found by clicking here. (I am not sure if the latter part of it is 100% correct)
I think these might be similar to ADX / CVM encryption / decryption processes. Any tips would be appreciated.