I have some audio files that I need to burn onto cd that only holds 700mb and they're less than 800 mb. is there any way to compress them to 700 without changing the format and quality? thanx.
The short answer is 'No'. For CD audio it is time dependant so you could use Audacity or some such to trim a few minutes or compress the time, but that's not lossless.
as mentioned above you can't really compress data for audio CDs. good news is that some manufacturers actually do make 800MB/90min CDRs. They will play in most CD players, and you need a burning program that supports overburning (such as nero.) you can find the CDRs here: http://www.burnsmart.com/Prodisc-90min-CD-R-10pack-p/100.htm
One last time... The normal audio CD format is completely time dependent. An hour of silence for a wave file or a CD is the same size as an hour of music. One other option not mentioned is there is going to a different format. I know you stated you wanted to keep the format. I am pushier that the other two members. If you only save the information you can hear, you can hold 10 yrs of audio on an mp3 CD. The problem is can your player play an mp3. As far as formats... are you convinced that you can tell the difference between 700 megs of silence lasting an hour and 0 megs of silence lasting an hour? Me, I pick the 0 megs and save the space. I am curious, the last time I heard someone wanted to store 800 megs of data on a CD, the audio was a lecture. Human voices can be faithfully captured at 50 CBR the CD is 1,300 CBR. That is extreme over kill. By reducing to 50 CBR she was able to store the series on on CD and could not hear the difference between the lossless and the compressed audio.
how was your mp3 cd unsuccessful? an mp3 cd is essentially the same this as a data cd, just with mp3s on it. like mentioned above, you need a cd player that can play mp3 cds. if not, like i mentioned above you can get 90 (and even 99) minute audio cdrs.
What makes you think you were unsuccessful? Did it not burn or did it not play? As djscoop & I have mentioned, most older CD players do not play mp3 CDs. What did you use to do the burning? I prefer to use Media Monkey which is pretty much idiot proof even if you use some of the advanced features. Did you ever think of breaking the CD into 2 45 min CDs? That might be the surest, easist method to get the job done. I only mentioned the mp3 CDs because most new cars have mp3 CD players in them. Once you start using mp3 disks with text you will never use anything else.
That was user error. Still, I like to use idiot proof software if the price is right and it does a good job. You are not using idiot proof software. Try down loading a free version of my favotite audio solution, Media monkey. Let it find your audio files which might take some time if you have lots of disk space so you might install before you go to bed. Then you just find and highlight what you want to burn and click on the icon of a disk on fire. The hard part is done. It defaults to burning what you last selected as what you want to burn. You have two options clearly spelled out. Audio disk or an mp3 disk. You pick mp3. At this point it checks for any possible duplicates and will highlite any possible dupes in red. This is important when you have hundred of files to burn. I think you can rearrainge the order on this screen. It also tells you the size of your files and the free space on your disk. It will prompt you if you do not pay attention to the sizes and you are trying to burn more than will fit. You can either burn multiple disks or you can de-select some tracks. If you are burning a mp3 disk, you can turn on the text feature with a check box and then you can see what will be written to the text. This can be altered easily. You can pick which tag goes where. Then you burn. It is that simple. If you can read English, you can burn any kind of audio CD or DVD with advanced features.
mholix, What do you doubt? That brenna25's burner said I agree, burners don't talk. If you think you can't put more than an hour on a mp3 CD, your are dead wrong. I usually put 8-10 hrs on mine. You degrade the quality of the music if you burn mp3s back as a audio CD. That is a NO - NO! Once you compress lossless, you can't go back without a serious quality loss.
