Error message-unable to decode m4a file (is corrupt or not supported audio type)

[eartha]

hello,

i installed the converter software as well as the dbpoweramp codec m4a. i get the folowing error:

Error converting to Wave, 'C:\Documents and Settings\Angela\Desktop\New Folder\(Oh No) What You Got By Justin Timberlake & Timbaland - Justified.M4A' to 'C:\Documents and Settings\Angela\Desktop\New Folder\(Oh No) What You Got By Justin Timberlake & Timbaland - Justified.wav'
Error chunk 0 length. [clMP4Handler::ScanFile]
Unable to decode m4a file (is corrupt or not supported audio type).

thanks for any help

[Spoon]

Re: Error message-unable to decode m4a file (is corrupt or not supported audio type)

Where did the files come from, iTunes store?