What is the file size? How many Megabytes? 1,000 KB = 1 megabyte
What is the format of the files? If it's an MP3 you can find out by looking at the file extension (the last three characters after the dot) ... the file name should finish with ".mp3".
However, chances are that your file extensions are hidden (Windows does that by default).
To Unhide file extensions:
1. Open My Documents
2. Tools --> Folder Options
3. Choose the
View tab
4.
Uncheck the box that says "Hide extensions for known file types" (see below)
Now you can tell us what the file format is
My first guess would be that you have WAV files and they are too big to upload. If you're struggling, feel free to PM me and we'll see if we can sort it out.