View Issue Details

IDProjectCategoryView StatusLast Update
0005581MMW v4Burning / Disc Handlingpublic2009-05-08 15:52
Reporterrusty Assigned To 
PriorityimmediateSeveritymajorReproducibilityalways
Status closedResolutionfixed 
Product Version3.1 
Target Version3.1Fixed in Version3.1 
Summary0005581: Verification of DVD-Burn takes very long for large files
DescriptionThere seems to be a problem with verification of data burns. e.g. Burning a data DVD (flac tracks) might take 6 minutes, but verification takes 1/2 hour. The issue is likely related to the size of the tracks and is most likely to occur with lossless formats.

Originally reported at:
http://www.mediamonkey.com/forum/viewtopic.php?f=6&t=39277
TagsNo tags attached.
Fixed in build1244

Relationships

related to 0004420 closedLudek Burning data DVD: Verification is slow in some cases + cannot be terminated 

Activities

Ludek

2009-05-06 10:35

developer   ~0017695

Yes, it is problem for files larger than 20MB, because we use 20MB buffer and read such a file per partes (per 20 MB) and it is not effective in case of CD/DVD content reading (see 0004420).

So I changed it and now any file is always read at once.

I was surprised how ineffective it was. I have done a test with 3 files, each one had 100 MB size and it took 4 minutes to verify!

Now it takes 8 seconds!!!
Whole DVD (4.7 GB) takes 5 minutes.

Fixed in build 1244.

peke

2009-05-08 15:52

developer   ~0017742

Verified 1244 on 1GB FLAC files >50Mb and DVD-RW