I am using Audio Forge Audio Studio 9LE software on a Windows 10 computer and was using tthe Disc-at -Once setting to burn an audio cd from a file I created from a vinyl record recording from a Sony turntable The disc was burnt without errors according to the software message but when I tried to play it on a portable disc player or in my car it said no disc. When I put the disc into the disc drive on the computer an error message appeared indicating "Invalid directory"

Yes that did it I thought it was something simple thank you very much I am very inexperienced with this software but so far it seems to work great with the turntable. I will likely need some more help

Did you use decent quality blank disc stock? I had some cheapo discs where about every other one was a dud (coaster). No problems when I switched back to good quality discs. Try another disc.

Otherwise, I am not familiar with Sound Forge 9 LE. Make sure track #1 has two seconds prior to it, the following tracks do not matter with DAO. Also double-check you are in fact burning DAO. Track-at-Once CDs are known not to play on many hardware players.
When I did burn audio CDs, I usually used 'CD Architect' which was included with the later versions of SCS (Sony) Sound Forge Pro. Prior to that, Ahead (Roxio) Nero.

I tried the Verbatim Digital Vinyl cds and they seem to work very well. When I burned a cd from a saved file I created from a old vinyl record with Sound Forge the recording was great but the volume was very low so on playback in the car or on a portable I had to turn the volume way up to be heard. I believe it may be in my setup.

A second one I made was better but could still be improved on. As stated I am still learning the software so I am sure I will get it but if you have any further info/hints it would be greatly appreciated. This software will do far more than I will ever need and is a little intimidating. Thanks again for all your help. I managed to close the cd that would not play and now it works well.

To make the overall waveform amplitude higher, (louder) you can normalize .. if SF-9 LE has the normalize process; or use a 'compressor / limiter / volume maximizer' like 'Wave Hammer'., but SF-9 LE probably does not have that either. Otherwise, (if SF-9 LE supports VST plug-ins) some folks like the free LoudMax , which is easy to use .. and abuse.

Most commercial rock and pop Audio CDs generally have the maximum peaks hit -0.1dBFS and even a few 'overs' here and there are not uncommon.

9LE does have the normalize process control and that worked. Now my only current problem is the 2 cds I recorded that even my computer that I used to burn the discs will not recognize error message says D:\ invalid directory and will not play. Somehow I managed to open a third cd I burnt and was able to close it as you suggested and now it works fine in all players. I do not know what I did. I am sure if I can figure out how to get the other two to open so I can close them they will work as well. I know the recordings are there because when I try to record on them it tells me there is approximately 300MB space left so the approx 400 used is about right for the recorded music. Any thoughts? If not discarding 2 discs is a small price to pay especially since armed with the knowledge you have provided I will not make the same mistake again and can enjoy the music from my old vinyl for a long time to come. I am amazed at how well the Sony turntable works with this software considering my albums are well over 20 years old but sound as good or better than ever. Technology!!!!!!!!

Cannot tell you how much I appreciate all this help.

@Greg-Rankin

Hi

Try the following:

1. Using Windows File Explorer and one of the open (not finalised) discs in the drive.
    
2. Right click on the disc icon and select “Close Session.”

A pop-up box should appear once the finalization is done

HTH

John EB

I attempted this fix but did not get the Close Session option. Error message still says D:\is an invalid directory

When using the DAO mode, closing the disc after burning is a default operation and does not an option .. hence the name 'Disc-At-Once'. As I stated, 'Track-At-Once' (TAO) discs are problematic.

Otherwise. you may try updating the drive's firmware and/or driver. Disabling and re-enabling it is worth a try as well. CD Architect is my 'go to' burning app, which does not even have a TAO option.