The Luna range is built by BMC Medical and sold under the React Health / 3B Medical brand, which is why the same machine has two names depending on where you bought it. Three card layouts turn up, and you select the card root for all three. 1. Luna G3X (and BMC G3 A20 / B20A on recent firmware) The card root holds files named after the machine's serial number — something like A31XXXXXXXX.idx, .evt, .set and .log, plus numbered waveform files .000, .001 and so on. You will probably also see nP3-… files (the machine's language packs) and a System Volume Information folder. All of that is normal. Select the whole card. 2. Luna G2S (the older Luna) The same serial-named files, but with a .USR file where the G3 platform has .evt. 3. Luna II / Hoffrichter POINT (ResVent format) A card with THERAPY and RECORD folders. The two questions we get most "My Luna G3X shows up as BMC Medical G3 A20." That is correct, and it is your machine. The device reports itself as a G3 A20; SomniCharts prints what the machine says rather than what the retail box says. Your data, charts and settings are complete — only the label differs. "My G3X card went to DropBox review from the phone." The Android app needs version 1.12 or newer to recognise the G3-platform layout. Update from Google Play and upload again, or upload the same card from the web app. Worth knowing: the G3 card format is newer than some other tools can read. If a different program refuses your card, that is not a sign the card is damaged. Nothing on SomniTalk is medical advice. Talk to your own clinician before changing therapy.