Depending on the software version you have 1.3 being the latest you will have delete details in the info fields on each sound and add a title or new sounds will show on remote with (NO NAME). Updates are being created to stop the issue but you can go to primoszendesk.com for all updates and support. All my added sounds are mp3 so theres no issue with that. The other night I took mine to a friends NYrs eve party while standing around the bon fire on wooded 5 acres I had everyone convinced that a pack of coyotes had taken down a young fawn and was killing it not 100 yds away in the darkness. With the help of one of the dads we moved it around through out the evening we were busting a gut all night. At times there were conectivity issues but I couldn't tell if there were objects in the way or not.