Speed Problem w/CD Burn

[JSngry]

Downloaded an mp3 of an all-music podcast from a site. The thing is <80 minutes (as are all this site's podcasts), so I burned it to CD in .wav form (as I do all this site's podcasts). I go to play it, and there's a funny "blown speaker" sound to the music, which is usually the sign of a bad burn, but there's something else that I've never encountered before - the music sounds like a 45 being played at 33 1/3. Didn't know that this was possible, so I'm wonderrng if maybe for this particular podcast, the DJ decided to go all Screwed, and if maybe the rattling sound was just an effect. But no. I played the original mp3 file, and it's all good, nice and normal.

So, has something like this ever happened to anybody before, where the speed goes of on a burn? How is this possible, waht's the science?

Inquiring minds, etc...

[mikeweil]

Downloaded an mp3 of an all-music podcast from a site. The thing is <80 minutes (as are all this site's podcasts), so I burned it to CD in .wav form (as I do all this site's podcasts). I go to play it, and there's a funny "blown speaker" sound to the music, which is usually the sign of a bad burn, but there's something else that I've never encountered before - the music sounds like a 45 being played at 33 1/3. Didn't know that this was possible, so I'm wonderrng if maybe for this particular podcast, the DJ decided to go all Screwed, and if maybe the rattling sound was just an effect. But no. I played the original mp3 file, and it's all good, nice and normal.

So, has something like this ever happened to anybody before, where the speed goes of on a burn? How is this possible, waht's the science?

Inquiring minds, etc...

I have experienced milder forms of this. I'd say try different software for decompressing the mp3 files before burning. Since there are minor differences between software for compression, there could be compatibilty problems and using a different one for decompressing could compensate.

Besides that I always burn only at 4 x speed. I use Feurio, a German language burning software which always decompresses without problems.

[Eloe Omoe]

I have experienced milder forms of this. I'd say try different software for decompressing the mp3 files before burning. Since there are minor differences between software for compression, there could be compatibilty problems and using a different one for decompressing could compensate.

Besides that I always burn only at 4 x speed. I use Feurio, a German language burning software which always decompresses without problems.

I use Foobar, a very good player that can handle 99% of music file formats and runs a very good internal converter, which allows you to burn CDs without resorting to an external burning software. Unfortunately, it works with Windows only (I do not know your OS - I run Vista).

[JSngry]

I'm using OEM Roxio Basic CD Creator 5, a very simple, no-frills program that has gotten it done more times than I can count, including countless # files of this same type/size from this same site. I'm wondering if maybe my PC bugged out for a second during the process, or if there was something in the source file that triggered this error in an otherwise "foolproof" (so far) program.

The end result/effect is kinda cool though. It's a 60+ minute non-stop house mix, and the slower tempo reveals the intricacies of the interlocking rhythms quite vividly!

[RDK]

Hey Jim - can you tell what bitrate the original mp3 is at? My bet it's VBR (variable). I noticed a similar problem a few years back with some VBR files playing back (or burning) at the wrong speeds depending on the decoder used. Try a different burning software - you can even try burning with iTiunes or WMP. I love Roxio CD Creator, but version 5 is getting a bit long in the tooth these days and may not support VBR.

[JSngry]

56 kbs, file was created over a year ago, and is identical to umpteen-jillion other files on the same site: http://www.routesinrhythm.com/routes/mixes/mix.html I got lots of 'em, trrust me...

This is the only time that this has happened, so I'm wondering if my computer might have burped funny during the burning process or some thing... Only one way to find out, and that's to reburn. So here goes...

Results to follow.

[JSngry]

Ok, burnt again on Roxio, same problem.

Burnt another copy using WMP & it came out fine.

Hmmmm....gonna try another file on Roxio & see what happens.

[JSngry]

Must've been something in that one file that Roxio didn't like, another one just burnt up perfect.

Interesting...

[Head Man]

Must've been something in that one file that Roxio didn't like, another one just burnt up perfect.

Interesting...

But not that interesting!

[JSngry]

For a head man, why you look down at your feet all the time?

Now that's what's interesting!

[7/4]

For a head man, why you look down at your feet all the time?

Now that's what's interesting!

Just checkin' to see if the nails need to be trimmed.

[Head Man]

For a head man, why you look down at your feet all the time?

Now that's what's interesting!

Hey, what's wrong with the feet? They're my best feature!

[JSngry]

Well, that's interesting too! :tup

As is this - the disc that plays at the too-slow speed actually shows a duration of 1/100 second less than the one that playes at the correct speed! :blink:

Somebody explain the science to me, please. That's all I'm asking. :)