There's another solution to read song tittle from tags on Dropbox service.
Could You open plugins/content/commedia/commedia.php file and change there in line 970:
if ((!$_radio) && ($narray['size'][$count] == '0')) $retarr = getMP3Info($filetoget,$ftht,$conn_id,$tagstype,$encodingid3v1,false,$showCover,$fnames_encoding);
to
if (!$_radio) $retarr = getMP3Info($filetoget,$ftht,$conn_id,$tagstype,$encodingid3v1,false,$showCover,$fnames_encoding);
But the page will load slowly after that, cause Commedia will need to load part of every file and to get ID3-information out of there.
I'll send You the latest version also, that can read information from ID3-tags on external http-server. What is Your contact e-mail?