You can easily create different folders for different content in iDiscrete. From the Home Screen simply touch "Manage" and then "Create folder." You may create as many folders as you like, containing both images and videos. Entire folders can be deleted (thereby deleting all content within) by selecting "Edit" from the Manage menu. Alternatively, you may swipe your finger across a folder you wish to delete and press the red "Delete" button.
A short press on an image or video will allow you to view it, but a long press will bring up the File Menu. This menu allows you to email, delete, move to folder or set as cover. An option only for images is to "Export to Camera Roll," which allows you to move a picture back into your Camera Roll. Additionally, an option only for videos is to "Rename," which allows you to change the file name that displays next to the video thumbnail.
Note: The default folders, Pictures and Videos, cannot be deleted.