I currently have a Panasonic DMR-ES10, but the drive unit has gone and it won't read disks anymore. I only use it to record things from my Sky+ box, so don't need anything fancy. I want to replace it, but don't know what to go for. Any suggestions for a relatively cheap replacement? The only stipulation is that it uses DVD -Rs and not +Rs, as I have a lot of -Rs left over. Any help appreciated.