[ddouglass]

Hoster 4.04 will not have all of the planned additions because they are still trying to work out some of the kinks in what has already been implemented.
The plan is currently to allow SCDG files to be able to use the same Brand\DiscID to import using several BookIDs, automatically switching from one BookID to the next after 99 files have been imported. That way you don't have to break the files into blocks of 99 and enter all the data yourself for all after the first. That is the only thing they are adding. There has never been any plan for Hoster to be able to extract the individual songs from an SCDG .dat file directly into Hoster.
Currently and for many versions before you have been able to import those files but you could only use the DiskID of the SCDG for the first 99 songs. After that you had to make-up a new DiskID for Hoster to start a new BookID for the next 99. Since it is not the correct ID then Hoster has no information about it and cannot fill in the information.
Conclusion, you will still have to convert those SCDG tracks to either MP3+G or BIN to import them.