我參照了
使用 Scenarist 為 DVD 加中文字幕(保留原始選單,字幕,章節,多重PGC)
並作出 WinDVD 能相容的 DVD 格式
這一篇文章做了DVD
在最後步驟輸出時一堆bmp error
最後一段如下

Info Encoding subpicture .\FPS30VOB01-1_0732.bmp
Error Can't open image file(.\FPS30VOB01-1_0732.bmp)
Info Multiplexing
Info Multiplexing VOB Main Stream
Error Cannot open subpicture file (D:\SWING\001 Cache\Encoded Files\VTS_01_0 FPS30_0001_6.sp)
Error dvd_mux : DoMux Multiplexing Error
Error Terminated Multiplexing (001.scn-VTS_01_VOBID_001_1 - 0xE0_1_t.vob).
Error Can't open read stream file. Please check the permission.
Error Multiplex is failed.
Info Multiplexing failed, Track<VTS_01_VOBID_001_1 - 0xE0_1>

Error MuxFromDB:MuxVTS failed
Error Multiplex failed
Error DVD files could not be created

要怎麼解決