barbudreadmon
commented
4 years ago The issue might be about wrong pregap calculation when the data is on second track. Out of curiosity i tried Last Bronx (Saturn), a game i knew for doing something similar, here is its redump's cue :
FILE "Last Bronx (USA) (Track 01).bin" BINARY
TRACK 01 MODE1/2352
INDEX 01 00:00:00
FILE "Last Bronx (USA) (Track 02).bin" BINARY
TRACK 02 MODE2/2352
INDEX 00 00:00:00
INDEX 01 00:03:00
FILE "Last Bronx (USA) (Track 03).bin" BINARY
TRACK 03 AUDIO
INDEX 00 00:00:00
INDEX 01 00:02:00
...With real CD, it failed the same way on beetle-saturn & kronos. It might also be worth mentioning that there was a fix last year in Kronos for those games using unusual toc : https://github.com/FCare/Kronos/commit/a1f869dabcb51901641d0dc3426980b76e797423 NB : by unusual i mean the games not having this classic layout : 1st track is data then other tracks are audio
otonoton
Symos404
Description
When dumping (or playing) an original TG-16 or PCE CD-ROM disc, RetroArch improperly reads the disc layout. The causes in-game CD audio playback to be slightly out of sync with game audio effects. This is most noticeable with games that use voiced cutscenes, like the intro to Castlevania: Rondo of Blood.
Behavior is identical when playing from an original disc or a dump made in RetroArch from that disc.
Multiple dumps were made on two difference drives (one internal, one external) and the results of all the dumps were identical.
The original game CD and the dumps were tested on Beetle PCE Fast and Beetle PCE. Behavior was identical across the cores.
This issue was mentioned once on Reddit about 10 months ago. The solution for that poster was to download a copy from somewhere rather than using RetroArch to dump or play the original disc.
Expected behavior
I will use Rondo of Blood in these examples just because it is very easy to see the issue immediately.
Play from disc:
1) Insert PCE CD (Rondo). 2) Load Beetle PCE Fast core. 3) Load Disc. 4) Run game. 5) Watch game intro. 6) Start playing game.
Dump disc and play:
1) Insert PCE CD (Rondo). 2) Dump Disc to hard drive using RA. 3) Load Beetle PCE Fast core. 4) Load Content (select newly dumped game). 5) Run game. 6) Watch game intro. 7) Start game.
Actual behavior
Play from disc:
1) Insert PCE CD (Rondo). 2) Load Beetle PCE Fast core. 3) Load Disc. 4) Run game. 5) Watch game intro. <----- Audio is not synced with subtitles. Beginning of next audio track briefly (and incorrectly) plays at title screen. 6) Start playing game.
Dump disc and play:
1) Insert PCE CD (Rondo). 2) Dump Disc to hard drive using RA. 3) Load Beetle PCE Fast core. 4) Load Content (select newly dumped game). 5) Run game. 6) Watch game intro. <----- Audio is not synced with subtitles. Beginning of next audio track briefly (and incorrectly) plays at title screen. 7) Start game.
Example CUE file produced by RetroArch
This CUE file was created by RetroArch from an original PCE Rondo of Blood game CD (ring marker FABT). It does not match the ReDump CUE file for the same game.
Link to ReDump CUE for comparison: http://redump.org/disc/29878/
Track size comparisons between RA dumped files and ReDump info
Track data sizes are different for selected tracks. All other track file sizes are the same as the ReDump file sizes. None of the MD5s from RetroArch dumped tracks match the values on ReDump. This seems to hint at the fact that RetroArch is starting at an incorrect value when initializing a dump.
Track 1:
Track 2:
Track 3:
Track 21:
Track 22:
Steps to reproduce the bug
Alternative:
Bisect Results
I only recently starting using RetroArch with v1.8,6, but this 10 month old Reddit post indicates that the issue may have been ongoing for awhile.
https://www.reddit.com/r/RetroArch/comments/c8f979/akumajou_dracula_x_chi_no_rondo_pc_engine/
Version/Commit
You can find this information under Information/System Information
Environment information