When I first looked at Shenmue 1 stream folder I was viewing ripped .cdi files so the structure is completely different due to the afs files being compressed. (afs compactor)

When .afs is compressed it shows as (file1, file2, file3 etc.)
Instead of a raw .afs file would show the actual file names.. i.e (0001.srf, 0001.str, 0002.str etc.)

This is why I thought the /stream (.afs etc.) file structure was different for Shenmue 1.

It is different in many ways to what is used in Shenmue 2!

A few differences are that there are no .ahx files used for speech like in Shenmue 2; instead the speech in Shenmue 1 uses .str files. Shenmue 2 .srf files do not hold subs, and the .idx files are different.

The .srf files are for the subtitles in Shenmue 1.

idxwrite will allow you to create a new .idx file depending on wether or not you extracted the original .afs files and have the .xml file for it.

If you try to make a custom .afs, then use idxwrite it will say the file is invalid!

For some reason you can create an .idx after you compress the .afs files, but this results in no speech in cinematics or free speech.. subs work though.

To selfboot Shenmue 1 this is what I found:

binhack ip.bin and 1st_read.bin to 11702 LBA.
Use custom sort order based on Shenmue Perfect rip. (remove dummy file .dat from data files and sort order)

Download CD01 here.

http://www.theisozone.com/downloads/dreamcast/dreamcast-isos/shenmue-1-undub-cd01/

Released : March, 2013
Platform : Sega Dreamcast
Region : PAL
Filename : SMITH_SHEN_UNDUB01.rar
CD(s) : 3 (80min)
Format : Padus DiscJuggler v4 (CDI)
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Thanks to:
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Wude - for info about the Coca-Cola Vending Machine Texture

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Rip Notes
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Here is an undub mod of Shenmue CD01 for Dreamcast.
This is as close to an undub for Shenmue as I can get.
Hope you enjoy it!

This release is for standard CD-R's.
99min versions will be released later.

Look for CD02, and CD03 soon...
Check http://www.shenmuedojo.net/forum for updates.

Space Harrier and Hang-On were Removed
Language Files were Removed
Added the Coca-Cola Vending Machine Texture

Cinematics: JP Speech/ENG Subs

Only cinematics that are not undub are:

A0125.afs
BTT00.afs
E1001D.afs
E1036.afs
SA1088.afs

FREE Speech: ENG subs when NPC is silent, JP subs when NPC uses JP Speech

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How to burn
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Use ImgBurn with pftoc.dll plugin or Padus DiscJuggler to burn this disc.