DVD cover research

For my second ancillary product I have chosen to make a DVD cover for my music video. I have researched some existing products to see the kind of things I should include on my own DVD cover. I looked at a variety of DVD cover images on Google and found that they all had very similar things in common. 

• Many of the DVDs include a variety of Videos for a whole album
• They all include a photo that either links to the band/artist or the album/songs
• Most have an age rating attached though a few don't
• A bar code 
• Some logos for companies/bands/advertisement
• Information about the production (director/editor etc)