This video shows how easy it is to take apart and fix the cassette drive belts on a ZX spectrum +2. As most of you out there may know some cassette drives use rubber belts to drive the mechanism, over time these belts where-out or start to turn into goo making the cassette drive fail, thankfully it is really easy to replace the belts. Link to the eBay store where i got the drive belts from : https://www.ebay.co.uk/str/wsp