[MTUSUPPORT]

Ok,
From what it sounds like you have created 5 folders with 99 files in each. From what I can tell, since you are importing the files all under the Same Brand and Disc ID is that you have Imported 444 files as 4 sets of 99. I am guessing that you now have 5 sets of 99 files with the same BookId's. So this is why you are only seeing 99 files.

If you had imported these files with different DiscId's you would now have run into this.

To fix what you have done, take one set of the 99 files in .kma format and copy these to a folder such as \songs.

Then take the other files and copy them to another folder named something such as Songs\New.

Now go into Hoster and build the Songs Database for the \songs folder ONLY.

Once you have done this, go to the Tools Menu\Merge KMA Files. Now set the Song Source Folder on this dialog, at the top, to your \Songs\New folder to merge those other .kma files into the database. Now click the Merge into Songs Database button. This should now re-assign the BookId's for these songs to ones that are not used.

Now once this is finished, see if you can see all your files in Hoster.