To Zip or not to Zip?

[Embis]

When I first started PBEM games (many years ago! It was pretty standard practice to zip game files, partly to reduce file size in the days before broadband, but also to prevent files from becoming corrupted. More recently zipping seems to have fallen out of favour and I too had stopped doing it. 

Obviously file size is not really and issue with highspeed internet connections, however, recently I have had several games "go bad" because of a corrupt file. This has been on two different laptops, one with win 8 and one with win10 so it isnt an OS problem or machine specific. I have decided to go back to zipping files from now on.

I am using a nice free zip program called PeaZip (available from this link)
Better than the zip program that comes with windows, and very similar in appearance and operation to Winzip But whereas Winzip now costs £30!!!! (I couldnt quite believe how much this utility has gone up in price since I first bought it!!!) PeaZip is free.

I Would be interested in other peoples views, 

..anyone any thoughts on Zipping, or not Zipping?