How to fix an old mistake (lots of old inaccurate rips)

[timwi]

I've got several hundred (~500-600) CDs ripped as FLAC. I ripped them with another tool (mediamonkey) and when I was doing it, I didn't really understand all of the reasons I could get bad rips, so other than retrying the rips a few times, I mostly just powered through. This leaves me with a lot of ripped albums that have scattered bad rips throughout. Other than re-ripping everything, is there any way or tool to re-verify existing tracks against the accurate rip DB? I'm better equipped now to attempt to get good rips of those tracks, but I have no way of finding them.

[Spoon]

Re: How to fix an old mistake (lots of old inaccurate rips)

Use https://www.dbpoweramp.com/perfecttunes.htm and the AccurateRip component.

[timwi]

Re: How to fix an old mistake (lots of old inaccurate rips)

Lovely, this helps, at least some. I'm using PerfectTunes to start. Is there a way to browse the AccurateRip DB to try to see why so many of my albums are not found there? It's easily 2/3rds reporting as not found. I know I have some obscure stuff, but I don't know if that's excessive or not, or if I'm running into problems with idiosyncrasies in my tagging.

[timwi]

Re: How to fix an old mistake (lots of old inaccurate rips)

Amusingly, one of the albums it lists as not in the DB is Enya-Shepherd Moons, which is explicitly shown as an example album in the webpage for PerfectTunes.

Is the unregistered version limited in the number of thing it'll scan? No such limitation is mentioned.

[timwi]

Re: How to fix an old mistake (lots of old inaccurate rips)

And also interestingly, the album art tool recognizes all of the albums I've tried and suggests appropriate art. Any insight into how the tool matches up my albums to data in the AccurateRip DB? If it matters, my file layout is one directory per album and I've reversed artists names to "Last, First" where I can. Filenames end up like: "Music\E\Enya\Shepherd Moons\01-Shepherd Moons.flac", "Music\E\Enya\Shepherd Moons\02-Caribbean Blue.flac", or "Music\E\Emerson, Ken\Slack and Steel\01-Moana Chimes.flac".

In media monkey terms; "Music\<AlbumArtist:1>\<AlbumArtist>\<Album>\<Trac kNum:2>-<Title>"

[timwi]

Re: How to fix an old mistake (lots of old inaccurate rips)

Yeah, I was beginning to suspect something like that. Oddly, it's not consistent to a given time stretch, nor a given hardware set. That is, recognized and unrecognized ripped albums are intermingled from the same ripping hardware at roughly the same time. I was guessing it's something to do with the way media monkey encodes (it's aimed at ease of use, not fidelity).

Sigh. I suspect I'm going to have to re-rip with something a bit more concerned about such things. Recently, I've been using Exact Audio Copy, largely because it was literally the next FLAC encoder I found after Media Monkey.

That said, is there a way for me to browse TOC data from AccurateRip for various pressings of a given Album? I'd like to look for a pattern of error so I can understand what has gone wrong to make absolutely sure I don't repeat the error.

[timwi]

Re: How to fix an old mistake (lots of old inaccurate rips)

Yup, that missing gap would seem to be the answer. Looking at MusicBrainz and Enya-Shepherd Moons, for example, my rips don't quite match any of the TOCs there. The closest is a TOC that I'm short by 1 second on 3 or 4 tracks. I presume I'm short by less than 1 second on most/all of the tracks, but it only shows up at the granularity of 1 second when the difference crosses an integral second count.

So, any ideas on how to save the work I've already done? I'm a bit fuzzy on just what that < 1s of data is, or if it would affect the CRCs for the tracks. Normally, it would seem obvious that it would, but CUETOols, for instance, in verify mode shows [ CRC32 ] and [W/O NULL], so I wonder if there would be a way to pad the FLAC files to get the TOC to line up. Sounds tedious and painful, even if possible, but reripping several hundred albums sounds even more tedious and painful.

[GBrown]

Re: How to fix an old mistake (lots of old inaccurate rips)

I don't know how to fix this after the fact. But it sounds like the pre-gap spacing between tracks has been trimmed. Whatever software was used for the initial rips, maybe there is a setting there to do this? Unfortunately I think the only way to correct for that is to truly rip those discs again. :(