I'm not sure what you mean by "17.2g ed2k". Could you please provide more context or clarify your question?

Here are a few possibilities:

1. If this is related to file sharing, ED2K could refer to the eDonkey2000 network, but file sizes are typically not described this way.

2. It might be a chemical formula, but 17.2g is an unusual amount for most compounds.

3. It could be a mix of units (grams and ed2k), which doesn't make sense in standard measurements.

Could you please provide more information about what you're asking? I'd be happy to help if you can give me some additional context.