Have a look if your Verbatim states the country of manufacture. If they state India then they are pretty useless and they cannot be guaranteed as being reliable like the proper verbatim ones that are manufactured in Singapore. Burn the disc at the lowest speed, which is usually 2.4x. Anything higher can result in a bad burn. It doesn't matter that you could burn at a higher speed with one disc because, if they are originating from India, the rest of the batch could be screwed.

Could you burn the image on a different computer using IMgburn?

Hope you get it sorted.