Can V-CASE export a USB for non-Gemini players?
Short answer: no. V-CASE prepares and exports your music for Gemini Sound players, so it will not build a USB drive that a non-Gemini player can read.
V-CASE is Gemini's music management software, and it is built to work with Gemini hardware. When it exports to USB, it writes the library, playlists, and track data in the format Gemini players expect. Load that drive into a player from another brand and it either won't read the files or won't see your playlists and analysis.
Why V-CASE is tied to Gemini players
V-CASE and Gemini players are designed to talk to each other. That pairing is what gives you features like automatic playlist syncing and track analysis. Those features rely on the Gemini format on the drive, and other players don't know how to read it.
If you use a non-Gemini player
You can still use your music, you just won't export it through V-CASE. Copy the audio files to a USB drive yourself, or use the export tool that came with your player's software. Your other player reads standard audio files fine. What it can't do is open a V-CASE export.