By entering the title or, more handily, scanning its barcode, the free app will let you know how much HMV will give you, either in cash or credit, for your old games. The answer is probably not very much. Admittedly, I tested it with some quite out of date games, such as this example of golfing simulation featuring a pre-lothario Tiger Woods:
Unsurprisingly, they seem to prefer giving credit over cash, although given their current predicament, you’re probably safer to take the smaller amount of cash now rather than banking a higher amount of credit when they may no longer be around.
The app also helps you find your local HMV shop, so you can toddle off with a bag full of games to generate a couple of quid.
It’s a nice idea for an app, but the poor amounts on offer mean that it’s unlikely to get massive amounts of use. Although it’s probably more hassle, you’re likely to get more for your old games on eBay, or you could try other shops such as GAME.