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IDProjectCategoryView StatusLast Update
0016209MMW 5Codecspublic2020-01-26 00:53
Reporterrusty Assigned To 
Status closedResolutionfixed 
Product Version5.0 
Target Version5.0Fixed in Version5.0 
Summary0016209: M4A conversion fails non-deterministically (regression 2219)
DescriptionWhen USB syncing with auto-conversion for a set of 5 tracks (all tracks > 212 Kbps --> M4A @ 85%) enabled, some tracks fail to convert:
Bonnie Tyler - Holding out for a Hero and Ed Sheeran - The A Team (they appear to convert but sync as 0Kb tracks)
When performing the same test with WiFi sync, the same two files failed to convert.
(Note also: on other occasions (when auto-syncing larger lists) the Tone Loc - Wild Thing track also generated the missing codec error in MMA.)

When manually converting the 5 files on the playlist, 2 different files failed to convert:
Anna Kendrich - Cups and Avici- Wake me Up converted as 0b files!!
I subsequently tested manual conversion of the same tracks to M4A @40% and it exhibited the same problem.

So it seems that there a bug with M4A conversion that pseudo-randomly results to conversion failures.

See attached logs.
TagsNo tags attached.
Attached Files
failed m4a conversion.7z (387,145 bytes)
Fixed in build2220


related to 0016210 closedrusty USB Auto-sync: failed conversions sync as 0B files 



2019-12-23 16:47

developer   ~0055758

Fixed in build 2220.


2019-12-23 20:47

developer   ~0055760

Last edited: 2019-12-23 20:49

Was a regression introduced while fixing 0016138


2020-01-26 00:53

developer   ~0056206

Verified 2223

Tested on 10k of tracks sync 0 fails.

Test Note I have set All tracks > 160 --> M4A @ 85 % to get even more variety of formats to be converted.