What is the meaning of the Nero Burning ROM logo?
There have been a number of logos for the Nero Burning ROM software since it was first released in 1997.  Most feature a stylized image of a flame, which is a reference to the mythological figure of Nero, who, according to legend, played the fiddle while Rome burned, hence the association with fire.

The burning flame in the logo also symbolizes the burning of CDs and DVDs, which was one of the primary functions of Nero Burning ROM upon its first release. The software was designed to allow users to create and burn their own CDs and DVDs, making it a popular choice for both personal and professional use.

Overall, the logo is effective because it is a clever play on two aspects of the software: it's name and its primary use.
Who designed the logo and why did they go that certain route of design with it?
The original Nero Burning ROM logo was designed by the company Ahead Software in collaboration with a design agency called Empire Design. The logo features the word Nero in white lowercase letters with a red circle around it, resembling a compact disc.

The design was chosen to reflect the software's primary function, which is burning CDs and DVDs. The red circle symbolizes a disc, while the white text is meant to convey simplicity and clarity. The lowercase letters give the logo a modern and friendly feel, and the font was chosen to be easily recognizable and legible at small sizes.