Score marks on front discs... is it a concern?

[Gazbo]

My front discs have these odd radial score marks right around the disc surface:



Apart from the occasional pulsation felt through the pedal, the brakes seem ok.

Anyone know what causes this?
Do I need new discs?

[stevesports]

sounds like a warped disc. Is braking still linear?

[Gazbo]

sounds like a warped disc. Is braking still linear?

Braking still seems fine.

I was told my someone tonight these are cracks that likely go right through the disc.

Time for replacement.

[fattima]

Hard to tell from pics but they look like cracks. Discs are cheap so a replacement set could be good insurance.
Cracks can be due to overheating the disc or the discs could be under size.