How do I move music from folders to iTunes?

Question

I have music in a Music folder and a Download folder. I can't get Itunes to move it to the Itunes library. The music in the library is all "get info'd" as MPEG, and the music in the folders are all MP-3.
Do I have to convert the MP-3 music to MPEG or something for Itunes to recognize and load it into the Itunes library?
TIA - Rick

Answer 1

I have found the safest method is as follows...
1. Open iTunes, select from the Menu >File>Preferences,
2. In the Preferences window, select the Advanced tab,
3. In the Advanced tab, make sure the checkboxes for these two options are ticked,
    3.1 Keep iTunes Media folder organised,
    3.2 Copy files to iTunes Media folder when adding to library,
4. In the Advanced tab, check the location of your iTunes library (the default is most likely /user/Music/iTunes/iTunes Media, where user = your computer name, or if the library is on an external drive the drive volume name),
5. Select OK in Advanced Preferences,
6. Select from the Menu >File>Add To Library...
7. A dialogue box will open, asking you where iTunes should be directed - start by selecting your Music folder, then select OK,
8. iTunes should commence the process of copying all your music located in your Music folder/s into the iTunes Media folder identified in step 4 above,
9. If this works, repeat steps 6 & 7 but instead select your download folder.
10. Be certain that iTunes has successfully copied all your music files into iTunes Media folder before deleting your original music files.
11. iTunes can manage and play mp3 / mpeg3 music files, so it is not necessary to convert these.
12. If all this has worked, select from the Menu >File>Library>Get Album Artwork - this process usually grabs about 80-90% of the artwork, depending on how well named the files are - that is how well the metadata is organised - as shown in the dialogue box Get Info.