Project: Diagnosing and Fixing Audio Artifacts in “The Amazing Spider-Man 2” (4K UHD)
Objective:
To achieve a clean, accurate m2ts rip of “The Amazing Spider-Man 2” (4K UHD) with properly combined TrueHD+AC3 audio streams and no video or audio artifacts.
Problem Summary:
The user encountered choppy, corrupted audio playback when attempting to rip “The Amazing Spider-Man 2” using tsMuxeR directly from disc, folder structure or full decrypted ISO image. Video playback was also inconsistent under certain muxing conditions. This was the only disc (out of over 2,000) presenting these specific issues.
Tools Used:
- tsMuxeR
- MakeMKV
- MKVToolNix
- DGDemux
- MediaInfo
- BDInfo
- Infuse Pro (for playback validation)
- Decryption software (used externally and independently of MakeMKV; name intentionally omitted)
Chronological Steps & Tests:
-
Initial Rip with tsMuxeR (Direct from Disc, folder structure or Full Disc ISO)
- Result: Video stutter and audio corruption in THD+AC3 track.
- Turning off “Generate HDMV compatible TS” setting affected video playback but not audio corruption.
- Playlist-based muxing did not alter the result and was ultimately unnecessary.
-
MakeMKV Rip
- Result: Clean audio and video. However, THD and AC3 streams were separated.
- Additionally, this process removed Atmos data, making the rip less complete.
-
Remux with tsMuxeR back to m2ts (Post-MakeMKV MKV Input)
- Result: Good video, separated streams, and loss of Atmos confirmed.
-
Test: Video-Only Rip Using tsMuxeR
- Result: Clean video. Confirms video muxing is not the core problem.
-
Test: Audio-Only Rip Using tsMuxeR
- Result: Choppy and corrupted. Problem source narrowed down to the THD+AC3 track.
-
Demux with DGDemux using THD “Full” option
- Demuxed only the audio stream.
- THD+AC3 file produced was confirmed to contain both streams properly, maintaining Atmos.
- No need to use AC3 stream separately.
-
Rebuild: tsMuxeR Mux with DGDemux THD+AC3 Audio stream + tsMuxeR Video
- Result: Success. Final file played cleanly in Infuse Pro with full structure preserved and no audio artifacts.
- tsMuxeR was able to mux correctly without “fixing” the THD stream destructively.
- Atmos preserved, and stream was no longer separated.
-
Final Verification
- Tested muxed output in Infuse Pro: No stutter, Atmos preserved, structure matches standard layout.
- Additional check using playlist for mux yielded no improvement and confirmed video file was already singular—no chaining required.
Observations:
- tsMuxeR attempts to “fix” certain streams, sometimes destructively.
- MakeMKV separates streams by design and does not retain Atmos properly in this scenario.
- DGDemux preserved stream integrity and allowed for clean muxing.
- Playlist-based ripping was irrelevant in this specific case.
- Sony’s Blu-rays often contain unique DRM or stream structures that require extra care.
- tsMuxeR does not fix a corrupted stream post-MakeMKV rip, suggesting it only “corrects” during raw mux directly from disc, full ISO or folder structures.
Conclusion:
The issue stemmed from tsMuxeR’s attempt to fix or remux the THD+AC3 stream directly from the disc, folder structure or ISO image. DGDemux was able to extract a clean THD+AC3 file, which tsMuxeR could then safely remux into a final m2ts without issue. The Atmos data remained intact, and no audio artifacts were introduced.
TL;DR:
To fix broken THD+AC3 audio (choppy, corrupted) on this Sony 4K disc:
- Use decryption software (externally from MakeMKV) to rip m2ts directly from disc without THD+AC3 audio track.
- Separately Use DGDemux with decryption software (externally from MakeMKV) to rip/demux/extract a clean THD+AC3 audio file directly from disc.
- Recombine m2ts with tsMuxeR using the DGDemuxed audio track (THD+AC3).
- Do not use MakeMKV for Atmos-sensitive titles where stream integrity is critical.
- Playlist muxing did not matter in this case.
Note:
While this process fixed the issue for this specific title, it reflects a rare edge case among over 2,000 movies. Most discs will not require this level of manual intervention.