Complex sentence: Consumer wire recorders were marketed for home entertainment or as an inexpensive substitute for commercial office dictation recorders, but with the development and sales of consumer magnetic tape recorders starting in 1948, quickly drove wire recorders from the market.
Split into simpler sentences: Consumer wire recorders were marketed for home entertainment or as an inexpensive substitute for commercial office dictation recorders. However, the introduction of consumer magnetic tape recorders around 1948 quickly drove wire recorders from the market.