I'm a staunch supporter of power cords as THE place to get substantial gains... just about regardless the component.
I use by definition now, several transports feeding my DAC. Regardless the CDP, DVDP, or PC, everyone of them offers a different perspective into the sound, and many just outright are improved upon noticeably.
Most often those spinning items fare better with a more capacitant cable, but not always... I'd say 80% or so though. It'll depend on your system, and your preffs.
Personally I like the VX cords from Shunyata or for less $$$ maybe a Voodoo Black Dragon. There's lots out there designed just for spinning gear. Good luck.
Another tact too, might be a standard straight forward cable as for amps, & preamps, plugged into a good power filter/conditioner.