One of the biggest issues I have with the PS2 network adapter for connecting a hard drive for loading games is that you have to completely remove it to access the hard drive. Jeff Chen has designed a 3D printable replacement shell that allows you to remove the hard drive without removing the network adapter itself! Let's build one and check it out! Project page: Guide to setting up OPL and HDD (not my video but I followed it):
Hide player controls
Hide resume playing