diff --git a/services/web-ui/public/modal-new-recorder.jsx b/services/web-ui/public/modal-new-recorder.jsx
index 805bda0..5f74584 100644
--- a/services/web-ui/public/modal-new-recorder.jsx
+++ b/services/web-ui/public/modal-new-recorder.jsx
@@ -162,7 +162,7 @@ function NewRecorderModal({ open, onClose }) {
   const codecUsesBitrate = BITRATE_CODECS.has(recCodec);
   const [proxyOn, setProxyOn] = React.useState(true);
   const [growingOn, setGrowingOn] = React.useState(false);
-  // Growing-files mode forces the master to H.264 / MPEG-TS in the capture
+  // Growing-files mode forces the master to XDCAM HD422 / MXF OP1a in the capture
   // backend (the only growing format Premiere can import live), but the target
   // bitrate is still operator-controlled and applied via -b:v. Keep the bitrate
   // input visible/editable whenever growing is on, even if the selected (and
@@ -432,7 +432,7 @@ function NewRecorderModal({ open, onClose }) {
                     <select className="field-input" value={growingOn ? 'h264_growing' : recCodec}
                       onChange={e => setRecCodec(e.target.value)} disabled={growingOn}
                       style={{ appearance: 'auto', opacity: growingOn ? 0.6 : 1 }}>
-                      {growingOn && <option value="h264_growing">H.264 All-Intra (MPEG-TS) — growing</option>}
+                      {growingOn && <option value="h264_growing">XDCAM HD422 (MXF OP1a) — growing</option>}
                       <option value="hevc_nvenc">All-Intra HEVC (NVENC) — GPU, growing</option>
                       <option value="h264_nvenc">H.264 (NVENC) — GPU</option>
                       <option value="prores_hq">ProRes 422 HQ — 4:2:2 CPU</option>
@@ -489,7 +489,7 @@ function NewRecorderModal({ open, onClose }) {
               {recTab === 'container' && (
                 <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 10 }}>
                   <Field label="Container"
-                    value={growingOn ? 'MPEG-TS (growing, auto)' : (recContainer === 'mp4' ? 'MP4 (auto)' : 'Fragmented MOV (auto)')} select />
+                    value={growingOn ? 'MXF OP1a (growing, auto)' : (recContainer === 'mp4' ? 'MP4 (auto)' : 'Fragmented MOV (auto)')} select />
                   <Field label="Growing-file"
                     value={growingOn ? 'On (edit-while-record, locked)' : (recContainer === 'mov' ? 'Supported (edit-while-record)' : 'No')} select />
                 </div>
@@ -523,7 +523,7 @@ function NewRecorderModal({ open, onClose }) {
               </div>
               {growingOn && (
                 <div style={{ fontSize: 11, color: 'var(--warn, #d9a441)', marginTop: 6 }}>
-                  Growing-files mode records H.264 All-Intra (4:2:0) in MPEG-TS — the only format
+                  Growing-files mode records XDCAM HD422 (MPEG-2 4:2:2 CBR) in MXF OP1a — the format Premiere supports for edit-while-record growing files. Bitrate below still applies.
                   Premiere can import while it's still being written. The codec and container above
                   are overridden for this recorder (the target bitrate still applies). Turn growing
                   off to record your selected master codec/container.