To know about the best discs, you should search this LG forum. Many results will come up.
But I can tell you some brands which your drive likes. I found these to give great burns:
Taiyo Yuden -R 8x (media code: TYG02)
Verbatim -R 8x (MCC02RG20)
Maxell -R 4x (TYG01 and MXL RG02)
Verbatim +R 8x and 16x (MCC003 and MCC004)
Sony +R 4x (MCC002)
Maxell +R 4x (YUDEN000T01)
Verbatim +R Dual Layer 2.4x (MKM001)
For CDs, choose Taiyo Yuden, Verbatim, Sony, TDK.
You have other options, but these will give the best results.