I'm guessing that you're worried about accidentally erasing content. In that case I wouldn't worry about it if you usually search around by tags. You can only erase by navigating by folders. The system forces you to actually enter the folder section to erase. While in tags navigation, you can not delete. Folders is the fist menu pick in the tags section. Once you're there, you have to drill down into the folders to delete.
e.g. you have click folders|video then pick the avi file then click the x and confirm. you don't get the x if you just pick video or from main menu icon.