Many users consider the pack as the "top" because it is automatically updated via the Online Updater. While not a single download, it provides the same outcome: a complete set of working ROMs.
For legal MAME usage, consider:
The "top" collectors justify their hoarding via the (which has no legal standing) or the "Preservation of Abandonware" (where the copyright holder no longer exists). In reality, companies like Capcom, SEGA, and Namco still enforce their copyrights. Nintendo is notoriously aggressive. all mame roms pack top
The most sought-after "all MAME ROMs pack top" collections typically contain: Many users consider the pack as the "top"
Julian grabbed his keyboard. He tried to interrupt, to ping the network, but his input was locked. He was a passenger now. companies like Capcom