Hi doja
If you mean can i get viruses,Viruses usualy come from a bad choise of download, sharing coppyright files will depend on the laws of your country.

As far as wav files to mp3, if your doing this to make them shareable
there are many converter programs out there.
If you convert them Make backups of the wav files for your own use cos
They are better quality.

Hey Guy's, can you reccomend a good converter ?
Peace.

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mickjapa108