At the risk of hijacking my own thread, (speaking of probably deservedly obsolete formats) I just found out -
...And in already broken news (how appropriate) Yesterday, 4/11, was apparently National 8 Track Day !...
And to think, I just missed play...CLICK!...ing mine yesterday.
As to my previous question, lots of things were reissued on 45 album sets and Lps that date from the 78 era, then some of them were probably later released in all the tape formats in some sort of fake stereo and on into the digital era. Something like Bing Crosby White Christmas could easily fall into that category.
And yes, there were 78s produced for other countries well into the 60s including Beatles etc. Also children's small 78s were produced into the 60s. There have even been a few oddball releases including some stereo microgroove ones up to the present.
But I was was wondering specifically if RCA or some other label that was recording in stereo for the 2 track tapes also released a mono mix of same in 45, 78 and 33 Lp versions in the era from about 1955-1958.
RCA's Sound Cartridge dates from about 1958, Stereo records from 57-58 and the last 78s for US domestic consumption (RCA, Elvis) around 1958 so it's all really close. I had previously asked when 4 track pre-recorded reel to reel took over from 2 track, and I believe the consensus was by about 1960, so they all theoretically could have been in release simultaneously. But there was not much pop stuff in early tape. Perhaps a big band artist or an Arthur Fiedler / Boston Pops might be a candidate.
I have a few things in several formats (more than 2) but nothing in every format.