G: The product_entity["turn0product3","AVerMedia Live Gamer Portable 2 Plus"] (LGP2 Plus) does have requirements about the SD card — so yes, you should make sure the card is formatted appropriately before you use it. citeturn0search0turn0search11turn0search26

✅ What you need to know

• The card must be a microSD, Class 10 or above. citeturn0search0turn0search11turn0search26
• The card’s capacity must be 128 GB or less. citeturn0search11turn0search28
• Supported file-system formats: FAT32 or exFAT. citeturn0search0turn0search11turn0search26
• If formatted as FAT32, the device will split recordings into ~4 GB chunks (roughly every 25 minutes). citeturn0search11turn0search20
• If formatted as exFAT, continuous recording is possible (no splitting). citeturn0search11turn0search0

📦 What this means for your SD card

You should format your microSD card as exFAT (or FAT32 if you don’t mind the split files) before inserting it into the LGP2 Plus. If it’s already formatted, make sure it meets the Class-10 and capacity requirements. If not, reformatting is the safer bet.

If you like — I can walk you through exactly how to format the SD card on Windows, macOS, or Linux so it works with your LGP2 Plus.

G: TLDR: You do not need to pre-format it for the device to “build its own structure,” but the card must already be formatted in a supported filesystem (FAT32 or exFAT). If the card is already FAT32 or exFAT, the LGP2 Plus will create its own folders and files automatically. If it’s formatted as something else, you must reformat it first.

Long form (still concise):

How the LGP2 Plus behaves:

• It does not require a special proprietary structure in advance.
• When you insert a usable card, it creates its own directory structure automatically (the “LGM” folder and recording subfolders).
• It does require the filesystem to be one of the two it understands:
  • FAT32
  • exFAT

If the SD card you’re holding is already FAT32 or exFAT → You can use it immediately. The device will build what it needs.

If the card is NTFS, ext4, APFS, HFS+, or anything else → You must reformat before the LGP2 Plus will record.

If you want, tell me the card’s current filesystem (or how you’re checking it), and I’ll confirm whether it’s good as-is.