can burn DVDs but not CDs

I'm not sure if this is problem that specifically concerns Trinity. I generally burn CDs and DVDs with k3b, and almost never use any other program. (I'm using the k3b-trinity packages.) I considered trying to use the non-Trinity version of k3b, or to boot into a KDE desktop instead of TDE, to see if that works. However, I also tried with Brasero, and had similar problems, so I'm guessing that the problem is not just with Trinity. No problem at all burning DVDs, including dual-layer. (I don't know about Blu-Ray, but I don't use them.) Whenever I try to burn CDs, however, k3b goes through the whole process, creating image, normalisation, etc., then crashes before it actually burns the CD. I ought to say that these are audio CDs. I've tried burning flac and wav files to CD, both with the same bad results. Also, a few weeks back, I tried to copy a large collection of mp3 files to a DVD as a data disc, but the program crashed before it could complete, and ruined the disc. I don't know if that incident could be related or not. It occurs to me to try to write a CD from the command-line, using growisofs or the like, but I've never done that before. I'm running Debian Jessie 8.8.0 and Trinity r14.04. Any help or observations would be appreciated. Bill