Sonic MyDvd Plus - delete it, its just a software for dvd's
HP Imaging Device - delete it, added software for HP printers, you don't really need it
HP Photosmart - same as the above, delete it if your not using it
J2SE Runtime - hmm, think twice! coz it's needed mainly on software that runs on internet
Synaptics Pointing Device Driver - dont delete this!!! not unless you really don't use it or you have uninstalled Synaptic from your PC
GemMaster Mystic - delete it, not unless you're using it
NetWaiting - you can either delete it or not... hmm, but for me i wouldn't because it might affect some of your post-installed software
Customer Experience Enhancement - haha, you better delete this one...
its just the same, you can delete Macromedia player and NOT ADOBE coz it's the updated flash player.