diff --git a/.workbuddy/skills/guanghuclip-video-generate/references/EXPERIENCE_BANK.md b/.workbuddy/skills/guanghuclip-video-generate/references/EXPERIENCE_BANK.md
index e795ea2..9f8c4a2 100644
--- a/.workbuddy/skills/guanghuclip-video-generate/references/EXPERIENCE_BANK.md
+++ b/.workbuddy/skills/guanghuclip-video-generate/references/EXPERIENCE_BANK.md
@@ -73,5 +73,8 @@ created: D131 · 2026-06-12
 
 ### 第一集拼接
 - SG FFmpeg: `/usr/bin/ffmpeg` v6.1.1
-- 纯拼接: `ffmpeg -f concat -safe 0 -i list.txt -c copy output.mp4`
-- 成品: 7镜45秒10MB，已部署guanghuclip.cn
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+- ❌ `-c copy` 拼接：MP4格式只粘上部分文件（7镜只出4镜）
+- ❌ `cat` 拼接：MP4容器不兼容，播放器只读第一个文件
+- ✅ TS流中间格式：`ffmpeg -i in.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts out.ts` → `cat *.ts` → `ffmpeg -i combined.ts -c copy -bsf:a aac_adtstoasc out.mp4`
+- ✅ `-c:v libx264` 重编码在低内存服务器会OOM（SIGTERM），优先用TS流无损方案
+- 成品: 7镜40秒19MB，已部署guanghuclip.cn
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