Marker Pens for DVD-R/W discs

[mrbingley]

Is there a special kind of marker pen needed for DVD-R/RW discs? I ask this because the pen I'm using to write on the discs (Bulkpaq) seems to bleed and spread out as soon as you write on the discs (I'm using a proper CD marker pen) or these discs just cheap and not the norm ?
Cheers
Chris.

[SLK001]

You should ONLY use Stanford's SHARPIE "Extra Fine Point" Permanent Marker on your DVDs. The color also HAS to be BLACK. Anything else will PERMANENTLY RUIN your efforts.

P.S. A DISCLOSURE - I own stock in the company that makes the SHARPIE pen, and BLACK is our biggest seller!