Do i have to Add each single dat file one by one ??
Yes. I recently deinstalled RomCenter to test Romulus, but here's what I recall:
- unzip your Tosec archive somewhere so you have all the single dats
- "file - open" in the menu, choose the dat you want to import. I think you will be asked if you want to import from a file or an emulator, choose file. RomCenter will convert it to it's own format which might take a while.
- repeat with all the dats you need. Delete the converted and unnecessary dats if you want to save harddisk space.
- all the disks from a dat should appear in the folder tree under "all games". This is simply a full list of files the dat contains.
- note that the tree only displays the entries of one dat at a time, you have to choose "file - open" to open/check another one (in RomCenter format, else you will be asked to import)
- right-click on "Rom files" and choose the folder where you have your disk images. I think you can add/delete more folders if you need. They are saved so you can continue once you restart RomCenter.
- the files you have should now be listed too under "Rom files" and you can right-click "fix files" or so to rename them, either a single file by right-clicking on it or the whole folder content by clicking on the folder path.