Which is the best 500 GB Hard Disk and SATA DVD-RW in terms of performance ?

Which is the best 500 GB Hard Disk and SATA DVD-RW in terms of performance

currently?

In other words,when is Digit going to conduct another shootout of hard disks and DVD-

RW's ?.I always go by Digit Test centre results.I am not a subscriber of Digit.Use to buy

them occasionally.If Digit has already conducted the tests for this year,could anybody on

this forum be kind enough to provide those results?

Last year based on Digit Test Centre results ,I bought the now notorious

SeagateST3500320 AS 7200.11 hard disk.Now I am having a hell of a lot of problems

with the hard disk.