Once you've downloaded the MAME 078 ROM set, you'll need to install it on your computer. Here's a step-by-step guide:

: A well-known community resource that provides DAT files to verify your set and links to their current distribution hubs. Usage Tips for MAME 0.78

Once you've downloaded the MAME 0.78 ROM set, follow these steps:

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So, where can you download the MAME 0.78 ROM set? Unfortunately, we can't provide a direct download link for the ROM set due to copyright restrictions. However, we can guide you on how to download and install the ROM set safely.