I have experienced this exact problem importing zipped files from my hard drive. I am currently running Hoster v3.310. I'm not sure if it was happenning before this version or not but it definitely is happenning now and it does appear to be writing over existing songs. This appears to be a serious bug to me since it is overwriting songs already in the database. Does anyone know the status of this issue and whether it has been recognized as a bug. Also, does anyone know if it is only in the 3.310 version or was it in 3.303 as well. I'm a bit concerned because there is no way of knowing how many (and which) songs I may have overwritten by not noticing this problem earlier.