Imported MAME roms not displaying

[Mr. Belding]

I followed all the instructions for importing a full mame set that ETA Prime described in the LaunchBox YouTube official channel, and everything seemed to go smoothly, but none of the games are displaying in LaunchBox.  All the artwork, videos, manuals, etc downloaded successfully and are in the appropriate folders.  Any idea where I might've gone wrong?

Posted this at Troubleshooting and got no response.  Thought I'd try here.

[Lordmonkus]

Posting it twice is not gonna get you any help faster, if no one has responded it is because they either are busy or don't have an answer for you at the time.

I deleted your other post on the matter.

[Mr. Belding]

I apologize for the double-post.  I got the issue fixed on my own anyway.