PS1: match popstation PSAR header byte-for-byte; drop fake KEYS.BIN/DOCUMENT.DAT

README.md

@@ -190,9 +190,10 @@ PS1 discs (pending) and converted EBOOTs also show up in the **Library** tab
 - **base.pbp** — conversion needs a PSN PS1 classic `EBOOT.PBP` (any game) to
   supply Sony's encrypted `DATA.PSP` loader. Copy one to `data/base.PBP` and
   point **Settings → General → PS1 base.pbp** at it.
-- **Output** — a PSN-style folder `<out>/<Game ID>/` containing `EBOOT.PBP`,
-  `KEYS.BIN` and `DOCUMENT.DAT`, ready to copy to
-  `<PSP>/PSP/GAME/<Game ID>/`.
+- **Output** — a folder `<out>/<Game ID>/` containing a single `EBOOT.PBP`
+  (the popstation way: uncompressed level-0 PSAR, no `KEYS.BIN`/`DOCUMENT.DAT`),
+  ready to copy to `<PSP>/PSP/GAME/<Game ID>/`. Compatible with CFW POPS
+  (ARK-4).
 
 Configure the folders in **Settings → General** (or `PSP_PS1_ROOTS` /
 `PSP_PS1_OUTPUT_DIR`). Current limits: single-disc games only (no multi-disc