Best tool to get USB access to the disc in the UMD drive?

I'm just wondering what some of you use to access the UMD disc via USB, to rip an ISO.

im not sure if its illegal, just google 'UMD dumper'.

But im not sure if there is a USB one?

I'm not sure if its legal either

Discussion of ripping PSP ISOs are against DCEmu forum rules. Don't run the risk of getting banned.

May i apologise then i thought if it where for legal backup it would be ok My mistake.