Sandisk SD Card

I have a casio lk-210 lighted keyboard that will not format a 1 gb sandisk sd card. All you are suppose to do is insert it and push the format command button and it should work. It responds ERR file, which is wrong because I have have 10 songs in the file. Both the keyboard and sd card arrived only 1 day ago, so everything is new, at least to me.
Thanks,
Moe
 
Did you ever see one work that way with a keyboard? I don't think so.
Have you tried just using normal OS commands to do this. Have you tried reading the online directions that come with the San Disk.
 
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